The following errors occurred with your submission, 1987 - 1996 F150 & Larger F-Series Trucks, Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. ( 20 ). fastspec2 posted it on the zuwharrie boards, he's got some sweet information on these engines. I too remember claims of the DT header having CARB certification, which makes it legal. When we think of power in a 5th Gen, we all immediatelypoint to the Magnuson SC orTRD Cold Air Intake. 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. Tyler, Yeah, I will get the link posted in the article, my bad. Primary Tubes, Cadillac, Chevy, GMC, SUV, Pickup, 4.8, 5.3L, Pair, 4.54 out of 5 stars Thanks guys. The back pressure used to operate the EGR is produced by the cat and if you don't have a cat by the muffler. It was thin wall steel. It hasn't given me any issues with the EGR for the 10 years that I've had it. 10 chevy avalanche headers Review: 1. JavaScript is disabled. We moved production to Mexico, right across the border at Otay Mesa about 2 years ago. Its been a great source for me! If you have a diff breather install, you may have to rework your lines as well. ( 62 ), Estimated USA Ship Date: So it just say year and engine not model of car. You must specify tubing type when ordering. Cheers. Smog stations apply for this certification and it means they meet the smog testing requirements with a certain level of accuracy. Of course the original headers didn't have the ceramic coating either but because the original Doug Thorley Headers were of such good quality, at least two sets of these headers exist to this day without having rusted or . Stay Updated with Emails from Summit Racing. Doug Thorley (1 . Estimated International Ship Date: Not directly from Nick or DT but Joel aka DesertRun was the person that worked with DT for the initial fitting and prototype work so I assume his words are accurate. Since the 'upgrade', it averages around 15 MPG . I want to complete as much of the system as I can. Since it is a new product, dont count on it being fully street legal. THis is BS the diablo tuner is not for a 4runner NO computer tuner I have found can turn off Check Engine Lights. If anything replacing leaking headers would improve your emissions. Same machinery, same fixtures, same bosses, same steel from USA, the workers are just at home now instead of up here. And do you have a link? 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. Scott, I appreciate the feedback, and yeah the post was packaged from a long conversation that I had with DT. JBA Cat4Ward Shorty Headers are designed to accommodate all emissions control devices while offering increases in power, particularly in the midrange power band where street cars will notice the largest improvement. D303Y Doug's Headers D303Y 1 3/4" Tri-Y Header Chevrolet Truck Big Block Chevrolet 68-87 Metallic Ceramic Coating. I'd love a set of them for my '65. 10G9Y, 124Y AND 133Y. Model year 2000 and newer will not require the sniffer test. no cats at all. This is crazy. Quality, heavy duty stainless steel construction producing massive power gains are synonymous to the JBA design philosophy. Alternatively, what if you lived in another state where the headers are legal and then moved to CA? Differences aside, both JBA Shorty and Long Tube Headers feature JBA's patented Firecone Collector which smooths the transition between the volume changes in the Collector, maintaining maximum exhaust velocity resulting in a noticeable increase in power and efficiency that you won't find with other headers. ( 29 ), Headers, Cat4ward, Stainless Steel, Natural, 1-5/8 in. No smog checks there and everything's legal. We've sent you an email with a link to update your password. Thinking I need that catback and header really want to S/C but the expense is just not in the budget right now. Our cost of finished goods did not go down because of this move. You can order this part by Contacting Us. Here is the link to the product. International Customer Options|In the United States? it needs to be smog legal though. Ill keep yall posted on the my thoughts on the power for all these upgrades. Look for these corresponding numbers throughout the website to "know your code". Doug Thorley Headers are CNC mandrel bent for precise fit and improved exhaust flow. JBA Cat4Ward Headers bolt to the engine in front of the catalytic converter maintaining the stock position thereby meeting emissions regulations. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() ); Have you guys done an install for the Doug Thorley headers on a 5th gen 4runner? Were a forum community dedicated to the Chevy Z06 Corvette. Only time I ever failed smog was due to a bad CAT. ( 41 ), Estimated USA Ship Date: Subscribednew CA resident here. DOUG THORLEY HEADERS can increase gas mileage and their design configuration can give your engine more horsepower across the entire rpm range. 14Bolt rear 5.13 mini spool,hydro assist, TG 5HD front springs, 63s out back. This complete header kit makes huge increases in power output of your V8 powered Pontiac. Done deal. We offer a variety of SMOG Legal CAT4Ward Shorty Headers and racing Long Tubes to suit most car, truck and SUV applications. Ships In a Few Days. Collector Diameter, Jeep, 4.0L, Each, 4.71 out of 5 stars Closed Now. Even with that I am not sure if it would throw a CEL. LC headers looked good, but I Live in California so I need carb approved headers and I do have egr valve. Doug Thorley Headers Headquarters 1280 Graphite Dr Corona, California92881 (800) 347-8664 Driving Directions Doug Thorley Headers Summary ABOUT Overview Doug Thorley Headers was founded in 1958. They pull and peak out very differently in the real world. Pretty sure it has it for the super duty smog legal in CA. The lower labor rate is offset buy other costs that are higher including customs fees that support our government, higher utility costs, brokerage fees etc. 2" tubing is just NOT needed with a stockish 1.3L motor. Location: Ottawa, Ontario . 83 short bed yota 35's 5.29's 4.7 f-150's arb front aussie locker rear high steer ifs rear axle. All headers also come with a nickel-chrome finish. Any chance you can post a picture or two of them installed? They don't exist in the aftermarket unless you have some made. spressoWAGON ROTM 2009 Kimberley Kamper Sports RV: Sold; 2006 Adventure Trailer Horizon: Sold; Apr 3, 2023 14 gauge mild steel is used in tubing walls and manifold flanges are all at least 3/8" thick to prevent heat warpage. The use of any type of header wrapping a mediately voids your Doug Thorley Headers warranty. Once this happens, your ECU will throw off some check engine lights. Is Doug even around anymore or has he left the party? Ill let you know how the Y-pipe and Unichip work out. They are not as good of quality and are NOT STREET LEGAL. Started by 84TanToy Exhaust Headers For Chevy GMC Avalanche Silverado Sierra Tahoe 1500 1999-06 4.8L 5.3L V8. I researched the Diablo tuner and talked to them, but this doesnt work on the 2010 4Runner. 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. 1.7 shaft rockers and beehives. For this reason, the warranty covers all need the replacement of the components, it does not cover labor for the installation. Reviews; This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles. Lets not forget about a few other options for horsepower; headers. I bought Doug Thorley headers part # THY-214Y-FI4-C. Good price I just paid over $400 for a Thorley tri-y outta SummitBump. Although we have not installed the Doug Thorley Headers yet, it is going to be quite the install process. Engine, Started by 3.4Runner I've seen some articles on the net saying that there are apparently SOME headers that are approved for a C5 Z06 by CARB in California. Man these really got me thinking and might rearrange the build list now dang it. Ported Hurricane Single Plane and custom 750 HP. Yeah, I have them. These Long Tube Header designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. 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. Cost. Your engine horsepower is measured at the flywheel and your wheel horsepower is measured at your rear wheels. ( 59 ), Headers, Shorty, Steel, Painted, Chevy, GMC, V8, LS, Pair, 3.77 out of 5 stars After you install your headers, you will eventually need to have 4Runner smogged, exactly 6 years after your manufacture date. Do these headers fit on a 2017? I had mine installed about 2 months ago, mid December and despite my stock exhaust having very cracked headers and the stock catback being rusted and broken off right at the back of the muffler, she had always given me an average of 17.5 MPG, give or take half an MPG in either direction. ( 7 ), Estimated USA Ship Date: Come here almost daily to see what I need to do to my rig next! Let me know what you want for it. How will we know that? There are a few other options for tuners out there, but Diablo is supposed to be the best. The sound got deep and tough and waaaay quieter, to my surprise. CARB has become very good at allowing quality parts to be used. I have an old non-leaking pair that I can sell off a 2000. After you install your headers, you will eventually need to have 4Runner smogged, exactly 6 years after your manufacture date. , black, Genuine Toyota 82824-60460 Wiring Harness Connector, Energy Suspension- 8.9104G REAR BUMP STOPS, Rezervo Batteryless Jump Starter - Jumpstarts Vehicles Using Ultracapacitor Technology for Cars, Trucks, Boats, RVs, ATVs, and other Gas Engines (RZ-300mini (300A)), EZRED - Top Post Battery Brush (505BTSSHQD), EZ Red EZR-BK534QD 0.75 in. Are try literally failing it because your exhaust is shiny? ( 23 ), Estimated USA Ship Date: (201), In Stock, Including at a Supplier. More in Corona; Edit Place; Force Sync. He passed away peacefully at his home in . 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. Note: Requires use of Hi-Po Z-Bar. Remove Ads. ( 10 ), Headers, Cat4ward, Stainless Steel, Natural, Ford, 6.8L V10, Kit, 5.0 out of 5 stars Doug Thorley Headers 304 SS Long Tube 4 To 1 Exhaust Header Kit with Connector Pipes (THY-312) 0. Ok, hunting me down a 1.6 8v header, any special years I can use? When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 0 Members and 1 Guest are viewing this topic. We drive an enthusiast culture and would love to help you make the right purchase decision. Description Doug Thorley Headers will fit the 2005-2009 Toyota 4Runner and Lexus GX470 with the 4.7L V8 engine. (Doug Thorley headers, which is located in SoCal) they are legal in CA. 4 Photos. 2004 V8 4Runner Limited. Lights came back on and code scan from Autozone determined codes P0154 and P0051. For my 93 pickup I've had to do both star testing and regular smog. A competent inspection station will be looking for this CARB/EO number.

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