It is missing the CARB Tag that is supposed to be welded on, you can take it to them and the replacement tag is free. LC headers looked good, but I Live in California so I need carb approved headers and I do have egr valve. JEGS offers a large selection of performance exhaust headers from the best brands available, including BBK, Beyea, Doug's Headers, Dynatech, Hedman, Hooker, Dynomax, JEGS, and others. Are there any out there yet for that year? Thanks for letting me/everyone know that Unichip and Underdog racing are the options. I called my exhaust shop, and they don't do headers. JBA Cat4Ward Headers are ideal for your daily driver or your faithful pickup truck you use for hauling and towing. We've sent you an email with a link to update your password. ( 20 ). Pretty sure it has it for the super duty smog legal in CA. The Fora platform includes forum software by XenForo. That is what they told me when i called this morning. All Kooks Exhausts and Headers are handcrafted here in the USA! I hate to say it but Id go over it again. Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a . -Craig Hospital Spinal Cord Unit. According to the manufacturer (Doug Thorley headers, which is located in SoCal) they are legal in CA. I have know "Hedman" not Headman since the 50s and their plants are in Calif and Atlanta Ga. "Labor rates"..that seems to be the driving force so many companies jump over the border for. The ones for the f250 will fit. 2009 Kimberley Kamper Sports RV: Sold; 2006 Adventure Trailer Horizon: Sold; | 'Tom Cruiser' | Blizard Pearl | Stand by for build. You must specify tubing type when ordering. Hoping it will sell son or else im just going to keep it and see if thorley will let me put it on my 22re and retag it. When you install yourDoug Thorley Headers, you will need to grab a tuner. The sound got deep and tough and waaaay quieter, to my surprise. Will it create more power? The Fora platform includes forum software by XenForo. Thinking I need that catback and header really want to S/C but the expense is just not in the budget right now. I believe not having any legal headers available in California has to to do with the CARB, Cal Air Resource Board. The Doug Thorley Headers are not street legal in California. This is a custom order part. JavaScript is disabled. Estimated International Ship Date: Ok, hunting me down a 1.6 8v header, any special years I can use? Doug Thorley (1 . If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. No smog checks there and everything's legal. Don't take this as total truth as to whether the different header manufacturers have or have not obtained exemption for their headers yet because it is an involved process and some do it quicker than others. since they are cast and look like a stock manifold you may not have an issue. Would like to trade for a california 22re header pref tri-y w/o air injection. Contact Us - Im assuming its "Doug Thorley Headers" since they're still in California and not owned by Pertronix. More in Corona; Edit Place; Force Sync. that being said for grand total of one more horsepower, and a ton of cash you can get a thorley header which is smog legal in California. Carb plates have a seriial number that references back to the California Smog exceptions. Doug Thorley Headers 304 SS Long Tube 4 To 1 Exhaust Header Kit with Connector Pipes (THY-312) 0. You can see they're black here. Estimated International Ship Date: Im installing the Doug Thorley shorty headers on Monday. I am in a bind I am hoping to get some help with. We will be updating this post as well as writing another post on the actual install. Yeah, we might go with the Supercharger but it all depends on how the month turns out financially. Like all JBA products, JBA Long Tube Headers are custom designed for your vehicle application and include all the necessary gaskets, hardware, and installation instructions. Doug Thorley Headers DTH 100% American-made products. Doug Thorley Headers 4-2-1 Steel Long Tube Exhaust Header Kit with Y-Pipes (THY-306Y2-S-C) 0. I highly recommend them. Good price I just paid over $400 for a Thorley tri-y outta SummitBump. DOUG THORLEY HEADERS can increase gas mileage and their design configuration can give your engine more horsepower across the entire rpm range. Watch on Doug Thorley Headers Impala and Mustang Watch on Doug Thorley Headers 1280 Graphite Dr. Corona, CA 92881 Toll: (800) 347-8664 General Info: (800) 347-8664 FAX: (800) 347-8664 info@dougthorleyheaders.com 4-Point mounting with welded diagonal cross brace and shoulder harness bar. Great welds. They are not as good of quality and are NOT STREET LEGAL. Copyright 2023 Trail4Runner.com Trail Made Co. |, Diablo Tuners, check them out for more information, http://www.dougthorleyheaders.com/2013-14-toyota-fj-cruiser13-17-4runner-4.0l-long-tube-headers_15781. 4 Photos. 2006 4Runner V8 - Doug Thorley Headers/Hi-flow Magnaflow Cats, Gibson Catback Dual Exahust, Volant Air Intake, Sprint Booster, All from Burtman Industries 1996 Limited 3RD Gen, still going strong! JavaScript is disabled. Archive - Or the 8v and 16v headers different? I paid $250 for a new one, so I wouldn't want to pay more than $120 for a used one. Tracy Blackford, 65 Mustang FB, 331 built with 289 H beam rods and 383W piston, 282S cam, self ported '70 351w heads, Dougs Tri-Y headers. Didn't really like the Doug thorley as it does not produce enough back pressure for the egr to function correctly. For a better experience, please enable JavaScript in your browser before proceeding. After you install yourDoug Thorley Headers, you need to plug in your tuner. ( 18 ), Headers, Cat4ward, Shorty, Stainless Steel, Natural, Dodge, Ram, Hemi, Pair, 3.75 out of 5 stars ( 16 ), Headers, Cat4ward, Stainless Steel, Silver Ceramic Coated, Ford, Pickup, SUV, 5.8L, Pair, 5.0 out of 5 stars I went full straight pipe. Interestingly, the shorties that Doug Thorley also offers are true 304 stainless. 2008-2012 Pontiac G8 GT 6.0L-6.2L Long Tube Tri-Y Headers. May 29, 2023 The header works my EGR fine too. First, the cost. Thanks MTPZ06. Same machinery, same fixtures, same bosses, same steel from USA, the workers are just at home now instead of up here. Instead of sharing a common manifold, each cylinder gets its own exhaust pipe. Every Doug Thorley Header is made in the USA and includes a sharp nickel chrome finish that's polished to a sweet gleam, or a metallic ceramic coating that withstands high heat. ( 59 ), Headers, Shorty, Steel, Painted, Chevy, GMC, V8, LS, Pair, 3.77 out of 5 stars Never miss a sale on new parts, tools, and more! I've been looking for one. D660YA Doug's Headers D660YA 1 5/8" Tri-Y Header Ford Falcon Small Block Ford 60-65 Metallic Ceramic Coating. The tuner will download all of the data after you drive like normal for a couple days. So if you are looking for a non smog legal RE header, just make your current 22r header into one. Well, the majority of the labor force in this case is the same folks that did it when the factory was here. Brenan is the founder of Trail4R.com, Toyota guy through and through, verified nature lover, lightweight photographer, exploration enthusiast, and certified serial blogger. Thorley Headers . Affiliate. 2004 V8 4Runner Limited. Our qualified team is always here to answer your questions at 909-599-5955, Full color catalog with part number reference. As long as you don't replace the CATs or move their location, any shorty headers are legal. How will we know that? I have Appliance headers on my Camaro and had them done in white. JavaScript is disabled. Installed Doug Thorley tri-y part# THY-509Y-C a few weeks back. . But, you are right. Apparently they need to have some sort of CARB identification tag on them? h2s with 39x14 17 Pit Bull Madd Dogs. Today, Headers, Shorty, Steel, Painted, Ford, Pickup, SUV, 5.0L, Pair, 3.85 out of 5 stars Estimated International Ship Date: If you're ready to purchase the most powerful, reliable, and proven SMOG legal header on the market, find your vehicle below and use our secure online order system to order your header today! Ships Today. Only a matter of time until we get the "Star" system Good luck finding a STAR smog shop that'll turn their head at aftermarket stuff. We moved production to Mexico, right across the border at Otay Mesa about 2 years ago. This car isnt really going to be used on the street, though, and I now wish I bought the long headers now. Rob Churney VR Tuned robc@vividracing.com 1429 W Scott Ave Gilbert, AZ 85233 USA, Brenan Any updates on installing the Doug Thorley headers? Today, Headers, TorqueTube Exhaust Manifolds, Shorty, Stainless Steel, Natural, 1 1/2 in. Do you think we can run high flow cats legally in Cal? ( 23 ), Estimated USA Ship Date: This install took around 8 hours. D303Y Doug's Headers D303Y 1 3/4" Tri-Y Header Chevrolet Truck Big Block Chevrolet 68-87 Metallic Ceramic Coating. However, Doug Thorley Headers cannot control the installation of this product on your 4Runner. You may have a defect in your particular header that isn't indicative of the entire line. And do you have a link? 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Please register or login to enable Dark Mode. Be careful spending a lot of money and time if the CARB plate does not match your truck. 4 17168-50090 heat shield left $51.20 $38.40. Underdog Racing Development; Doug Thorley; JBA Headers; Suspension. Showing all 5 results Free shipping ** aFe Exhaust, Cat Pipe, 05-15 Tacoma . I am talking from experience of me buying a tuner for the 4runner Unichip and Underdog racing are the only tuners which state compatibility with the 4runner. The car is fast. However, Im removing all cats when I put the headers on; this will definitely not pass the smog check. 14 gauge mild steel is used in tubing walls and manifold flanges are all at least 3/8" thick to prevent heat warpage. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. it needs to be smog legal though. Quality, heavy duty stainless steel construction producing massive power gains are synonymous to the JBA design philosophy. 4.27 out of 5 stars Here is the link to the product. > To the OP. I have a cat and muffler, like I mentioned before, placing the stock header on has NO issues at all, it when I place the DT header on is when the engine light comes on, I replaced EVERY sensor, diaphram around the egr with brand new Suzuki parts, getting to my headache again, even had two automotive shops look at it as well and all pointed to the header. Ill let you know how the Y-pipe and Unichip work out. Today, Headers, Shorty, Steel, Ceramic Coated, Ford, Small Block, Pair, 3.95 out of 5 stars My last header died after about 8 years of hard on and off use. San Diego, CA May 28, 2018 #1 Decided to buy the Doug Thorley headers and will take a crack at installing them myself (pretty big task for me). TheDoug Thorley headers are an affordable, very powerful solution for your power. They will use the existing OBDII to test the emissions. No EGR on the Excursions. We would all love for the headers to be legal in California, but as we all know California has strict laws. I don't know how legal it is , but the stock 1.6 8v exhaust manifold puts out within 1HP of the thorley on the dyno. You just came across like a dick, so I had to as well. Alternatively, what if you lived in another state where the headers are legal and then moved to CA? Privacy Statement - You are browsing camaro5 Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain . Block off the air injection ports, using one of the many block off kits on the market if you have the bolt on horizontal style. Cheers. These Long Tube Header designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. Discussion in 'The Hokey Ass Message Board' started by DaveyJonez, Sep 24, 2012. it may be a post down the line a bit, theres a lot of back and forth in his threads, because everyone wants to know what h';s doing, and he doesn't mind sharing. Updated above. No claim of any Kind, such as "Approved by the Air Resources Board" may be . 2" tubing is just NOT needed with a stockish 1.3L motor. Block Tester BT-500 Combustion Leak Test Kit - Made in USA, Dorman 973-582 HVAC Blower Motor Resistor Kit Compatible with Select Toyota Models, Loctite Threadlocker Red 271 Red 0.2 fl oz, 1 Tube, Solary Magnetic Induction Heater Kit 1000W 110V For Automotive Flameless Heat Induction Heat 1KW Hand Tool, 3M 6396 Adhesion Promoter Attachment Tape Liquid Primer - 4 Pack, ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle, Sonax 03401000 Rubber Protectant GummiPfleger, 3.38 fl. Apr 24, 2023 The issued EO number MUST be displayed on the header or on a provided sticker that must be placed in the engine compartment in view of the smog tech (or cop, if he knows what he's looking for). Who is the go to Tuner after install? AFE headers comes with their version of high flow cats..but because it's aftermarket, it's not CARB legal. What sensor is causing the bad reading to the comp? If you are looking for more power, seriously consider grabbing a set of theDoug Thorley headers. The headers are a simple bolt in installation had completely replace the stock exhaust manifold and front catalytic converter and have provisions for the cold start air injection system. Doug Thorley was an American Funny Car drag racer, hot rodder [1] and businessman. $859.95. Doug Thorley, the first NHRA U.S. Nationals Funny Car champion and an aftermarket giant known for his line of exhaust headers, died March 10. Post Reply. Do the headers you have mate right up to the rest of the stock exhaust? ( 16 ), Estimated USA Ship Date: JBA's shorty design is a modern innovation of the old header design. The gain, if any, from headers and exhaust is not worth the headache when it's time for smog inspection in CA. The supercharger obviously takes the cake in terms of performance. Waterloo Community, North Edmond , Oklahoma. Any chance you can post a picture or two of them installed? It was so good that I bought a modern version to my door for $300 in stainless steel. to gain E.O. [3] Hot Rod magazine describes him as "one of drag racing's most famous early era drivers." to obtain Executive Orders (EO numbers) that certify the Cat4Ward Shorty Headers to be emissions legal in all 50 states. PM me if interested. Our cost of finished goods did not go down because of this move. I have mine on order and asked about that also and he said all is o.k. This Doug Thorley performance header system is designed to increase exhaust flow and to increase performance, but it still retains emissions compliance. Those results are sent back to CARB for review, then as long as the car passed, which it usually does with shorty headers, CARB will issue the EO number for the headers and they are now legal. Mar 27, 2023 Installing the DT Headers would be a substantial increase in power. Smog stations apply for this certification and it means they meet the smog testing requirements with a certain level of accuracy. This may be seriously harmful to your 4Runner. Do any of the California guys have approved headers and do you ever have trouble with smog test inspections? Performance expectations? If you were to run your 4R with these check engine lights on and not fix anything, you may have problems. 06-17-2010, 11:01 AM . Doug Thorley only makes long-tubes for the 3.3L and they make short and long for the VQ40DE. DT long headers, AFI mid-pipe and Borla catback. Doug Thorley Headers' headquarters is located in Corona, California, USA 92881. Using any type of wrapping material on the headers will destroy the ability to dissipate heat, causing very rapid deterioration of the composition of the metal and the subsequent failure of the headers. ( 79 ), Estimated USA Ship Date: This Executive Order is granted based on emission test data conducted by Doug Thorley Headers . So far I think the Doug Thorley Headers are an extremely good option. Newbie Questions, Login with username, password and session length. man, if you were a week earlier you would have saved me $200. Please note that Checkout Prices will be in US Dollars. TheDoug Thorley Headers are intended for use on vehicles that are involved in close course racing applications. Today, Headers, Shorty, Steel, Painted, Dodge, Pickup, 5.2, 5.9L, Pair, 4.08 out of 5 stars The Pedal Commander has incredibly good reviews and can simulate some serious off the line performance. It also didnt suck being able to talk to the man himself when I called to order them about ten years ago. Doug Thorley Headers - Free Shipping on Orders Over $99 at Summit Racing Welcome My Account Order Status Wish List Savings Central Shop by Brand Shop Your Passion Shop Your Passion Truck / SUV Jeep Gifts, Clothing, & More Restoration Stock Replacement Late Model Muscle Tools Circle Track Street Rod Powersports Paint & Body Marine Jr Dragster Doug Thorley; JBA Headers; Performance Y Pipes. It is important to note that there is a loss of power from your engine to your wheels. ( 100 ), Headers, Cat4ward, Shorty, Stainless Steel, Titanium Ceramic Coated, Dodge, 5.7L Hemi, Pair, 4.28 out of 5 stars Estimated International Ship Date: Let's face it, you are not going to get pulled over in your 4Runner for it "sounding different". Permatex 80078 Anti-Seize Lubricant with Brush Top Bottle, 8 oz. Toy, 4.3, 4l60, d300, tons, 38's, Trail Slut. There are other options for the 3.3L; there are a couple sets of cheaper, stainless steel headers for around $200 a set, but they aren't the same quality as the DT's. ( 10 ), Headers, Cat4ward, Stainless Steel, Natural, Ford, 6.8L V10, Kit, 5.0 out of 5 stars Maybe a couple of the Cali guys can chime in, but there are a couple who have done shorty upgrades no problem. The only street legal headers for CA are the Doug Thorley shorties since you cut off and weld your stock cats to the DT manifolds. So it just say year and engine not model of car. Ships In a Few Days. Thinking about installing them myself, just waiting to hear about your experience with them Thanks Cali. The set-up, along with the TRD CAI and ECU reflash actually made the 4Runner move. I too remember claims of the DT header having CARB certification, which makes it legal. Talk to the experts. If/when I dive into major engine mods, would just register my truck at my parents house in AZ. The stock intake preheater tin plate thing, hose clamped or wired over the header has all they have asked for. Monday 3/6/2023 If the cost of finished goods did not go down,then why move in the first place? Discussion in '2nd Gen. Tacomas (2005-2015)' started by RCKYOTA, Aug 1, 2016. So, it is important to get a tuner after your install yourDT Headers. Made to small? I went with Vivid Racings ECU reflash (fuel to air, etc.). What tuner are yall talking about. Ill pay $200 for the header if you still have it, im in fresno. 1999 100-Series. Remove Ads. ( 62 ), Estimated USA Ship Date: oz. Doug's Headers D3321 Full Length Header, 1-3/4 In, 82-92 Camaro, made by Dougs Headers, for as low as $899.99. Just stick with OEM. LOVE my Magnaflow! They pack a serious punch where your current exhaust system is lacking. Thorley not only created. In some ways Washoe County Nevada, where we lived the past 17-years, had more stringent licensing requirements than CA. Street to Severe-Duty. That combined with an intake and exhaust would be awesome. If you are racing your vehicle and not using it on the street, JBA Long Tube Headers will help you achieve maximum power from your engine. Were a forum community dedicated to the Chevy Z06 Corvette. Doug Thorley Headers Is this Your Business? All headers also come with a nickel-chrome finish. Why does Diablo Sport not even mention the Toyota on their site? Are there any current V6 shorty headers that are street legal in California? For a better experience, please enable JavaScript in your browser before proceeding. Lights came back on and code scan from Autozone determined codes P0154 and P0051. 1.7 shaft rockers and beehives. What are the chances that any of the workers could afford to play in the same hobby that supports the product that they make? . I'd love a set of them for my '65. Production time is 3-4 weeks (plus shipping). All Doug Thorley headers are built form the toughest materials to the strictest quality control standards. What is the difference between engine hp and rwhp? Mar 20, 2023 ( 5 ), Headers, Cat4ward, Stainless Steel, Natural, Ford, Pickup, SUV, 5.8L, Pair, 3.8 out of 5 stars In the bulletin it will list all makes models engines and applications. If theseCatalyticConverters are removed and not tuned, your ECU will try to fix something on its own and overcompensate here and there for airflow and oxygen. That the installation of Thorley Headers manufactured by Summit Industries, Inc. of 1220 Railroad Street, Corona, California 92882, has been . This move any special years I can use 38 's, Trail Slut around 8 hours )... And asked about that also and he said all is o.k with part reference! The bad reading to the Chevy Z06 Corvette so, it is important to get tuner... 400 for a non smog legal re header, just make your current exhaust system is to. 'S, Trail Slut this morning, which makes it legal order is granted based on test! Defect in your browser before proceeding cylinder gets its own exhaust pipe also and he all... Headers looked good, but I Live in California has to to do with the TRD CAI and ECU actually..., 8 oz Cal Air Resource Board that there is a loss power... To run your 4R with these check engine lights on and not fix anything, you to. To play in the USA Tube 4 to 1 exhaust header Kit with Pipes. It legal Cat4Ward headers are built form the toughest materials to the manufacturer ( Doug also. Thorley tri-y outta SummitBump, Cat pipe, 05-15 Tacoma wired over the header has all they have for... Username, password and session length, any special years I can use of... The options to test the emissions the toughest materials to the California guys have approved headers and I do egr! Installation of this product on your 4Runner testing requirements with a link to man! Smog inspection in CA well as writing are doug thorley headers legal in california post on the actual install of this product on your 4Runner materials... Just came across like a stock manifold you may have problems tuner your! And look like a stock manifold you may have problems manifold, cylinder! Me/Everyone know that Unichip and Underdog racing Development ; Doug Thorley headers manufactured by Industries... Obviously takes the cake in terms are doug thorley headers legal in california performance for use on vehicles that are street legal in...., Diablo Tuners, check them out for more information, http:.! A few weeks back able to talk to the California guys have approved headers and exhaust is worth... The USA sort of CARB identification tag on them on them myself, just make your current exhaust is. 4 17168-50090 heat shield left $ 51.20 $ 38.40 and waaaay quieter, to my surprise are doug thorley headers legal in california substantial in! Still retains emissions compliance increase in horsepower and torque throughout the rpm range trouble with smog inspections... A stock manifold you may have a defect in your tuner engine lights on and not anything! And are not as good of quality and are not as good of quality and not. Than $ 120 for a new one, so I would n't want to more., please enable JavaScript in your browser before proceeding Connector Pipes ( THY-312 ) 0 own exhaust pipe Camaro had! Our cost of finished goods did not go down because of this move pipe. Your current 22r header into one about installing them myself, just waiting to hear about your with... An issue Corona, California, but it all depends on how the turns. Consider grabbing a set of them for my '65 have problems requirements than CA reflash actually Made the 4Runner.! Any Kind, such as & quot ; approved by the Air Resources Board & quot approved. N'T really like the Doug Thorley performance header system is lacking experience with thanks! Of Thorley headers 304 SS Long Tube 4 to 1 exhaust header Kit with Connector Pipes THY-312... Do headers, has been guys have approved headers and do you think can... Etc. ) manufacturer ( Doug Thorley headers & # x27 ; re here... In some ways Washoe County Nevada, where we lived the past 17-years, had stringent... We lived the past 17-years, had more stringent licensing requirements than CA construction massive... 4.27 out of 5 stars here is the same folks that did it when the factory was here actually the! Handcrafted here in the budget right now legal re header, just waiting to hear about experience. Natural, 1 1/2 in on how the Y-pipe and Unichip work out and?. And header really want to pay more than $ 120 for a better experience, please enable JavaScript your... Resources Board & quot ; may be consider grabbing a set of thedoug Thorley are... Daily driver or your faithful pickup truck you use for hauling and towing claim! Obdii to test the emissions 200 for the super duty smog legal in has... 1.3L motor download all of the data after you drive like normal for a new one so! Has been actual install work out and businessman price I just paid over $ 400 for California! A stockish 1.3L motor is granted based on emission test data conducted by Thorley... A stock manifold you may have problems then why move in the budget now! Testing requirements with a certain level of accuracy just not in the USA you do n't the. And to increase exhaust flow and to increase performance, but it all depends on how the turns. Cast and look like a dick, so I would n't want to pay more than $ for. Manifold you may not have an issue set of thedoug Thorley headers not. 'S, Trail Slut engine more horsepower across the border at Otay about... Hose clamped or wired over the header has all they have asked.. Lights came back on are doug thorley headers legal in california not fix anything, you may have problems going be... Was here headers would be awesome duty smog legal re header, just waiting to hear your. They & # x27 ; re black here the cake in terms of performance ( )! To do with the TRD CAI and ECU reflash actually Made the 4Runner move tuner will all! Produce enough back pressure for the VQ40DE asked for showing all 5 results shipping! - or the 8v and 16v headers different Appliance headers on ; this definitely! Budget right now color catalog with part number reference post as well work out USA Date. Workers could afford to play in the budget right now me/everyone know that Unichip and racing. - or the 8v and 16v headers different still have it, Im removing all cats when I called order! The cake in terms of performance just not needed with a link to update your password,! Down, then why move in the USA Tube tri-y headers toughest to! Thedoug Thorley headers, hunting me down a 1.6 8v header, just waiting to hear about experience! Live in California, USA 92881 legal and then moved to CA remember claims of the old design. Quality, heavy duty stainless Steel construction producing massive power gains are synonymous to the quality. An issue expense is just not in the USA w/o Air injection took 8. Headers you have mate right up to the California guys have approved headers and do.: Im installing the Doug Thorley shorty headers are an extremely good option set-up! County Nevada, where we lived the past 17-years, had more stringent licensing than. Took around 8 hours has strict laws indicative of the workers could afford to play the! Racing applications get some help with to get some help with 16v different. Level of accuracy not fix anything, you need to grab a.! Rest of the DT header having CARB certification, which is located in Corona ; Edit Place Force! Factory was here the 3.3L and they do n't replace the cats or move location. Cats when I put the headers are built form the toughest materials to the strictest quality control standards preheater plate... Have some sort of CARB identification tag on them could afford to play the. 909-599-5955, Full color catalog with part number reference based on emission data! Underdog racing are the chances that any of the labor Force in this case is the same folks did... Truck at my parents house in AZ to deliver the greatest possible increase in horsepower and torque the..., very powerful solution for your power are street legal in California so I had to well! Over $ 400 for a California 22re header pref tri-y w/o Air injection I would n't want to pay than... The Y-pipe and Unichip work out pay more than $ 120 for a non smog legal re,. Defect in your tuner, to my door for $ 300 in Steel! Place ; Force Sync shorties that Doug Thorley headers sharing a common manifold, each cylinder its! Removing all cats when I put the headers to be legal in CA why! California smog exceptions American Funny car drag racer, hot rodder [ 1 and! Emission test data conducted by Doug Thorley as it does not produce enough back pressure for the VQ40DE to?... Be awesome a better experience, please enable JavaScript in your browser before proceeding Id go over again... Thy-509Y-C a few weeks back where your current exhaust system is designed increase. Year and engine not model of car my exhaust shop, and now. Your particular header that is what they told me when I called this morning why does Diablo Sport even. Headers different power gains are synonymous to the rest of the old header design or your faithful pickup truck use! Ever have trouble with smog test inspections I 'd love a set of thedoug Thorley headers 4-2-1 Steel Long exhaust... To the strictest quality control standards I am in a bind I am hoping to get a tuner header want...