Ten minutes after the install the Check engine, VSC Trac and VSC Off lights came on. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Also Ill keep you posted on how well the Diablo Tuner works. ( 29 ), Headers, Cat4ward, Stainless Steel, Natural, 1-5/8 in. ( 79 ), Estimated USA Ship Date:
JBA Performance Exhaust Cat4ward Headers 1961S-2JT Headers, Cat4ward, Shorty, Stainless Steel, Titanium Ceramic Coated, Dodge, 5.7L Hemi, Pair Part Number: JBA-1961S-2JT ( 25 ) Estimated Ship Date: Today Free Shipping $824.99 Add To Cart Compare Wish List Summit Racing Truck Headers SUM-G9045 ( 62 ), Estimated USA Ship Date:
This may be seriously harmful to your 4Runner.
stock 1.6 8v exhaust manifold puts out within 1HP of the thorley on the dyno. You can see they're black here. Ill start the bid at $100 for the header.
So I assumed(sorry), that he still worked at Dougs.
10 chevy avalanche headers Review: 1.
I paid $250 for a new one, so I wouldn't want to pay more than $120 for a used one. When it comes to power on a 4Runner, well theres not much of it. 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! DT recommended the Diablo Tuners, check them out for more information. Good to hear from everybody.
We will be updating this post as well as writing another post on the actual install.
I'm in Visalia.
Headman is still located here in Michigan Bought a set for my Comet.I'm almost positive I remember seeing Made in USA on the box.Real happy with them.They fit really well! 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. Discussion in 'The Hokey Ass Message Board' started by DaveyJonez, Sep 24, 2012.
Doug Thorley Headers. 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. for Chevy Avalanche 1500 2002-2006 5.3L. There is always some confusion as Doug's last company was Doug's Headers, and his Ex-Wife's owned Doug Thorley Headers for many, many years until she passed and it was sold to a small company in Corona CA.. hotroddon, Sep 26, 2012. But, you are right. I cant imagine what the 4Runner would feel like with SC, Headers, Catback and Intake. This system, as is, passes the smog check in TX. Interestingly, the shorties that Doug Thorley also offers are true 304 stainless. Legal Name Doug Thorley Company Type For Profit Contact Email info@dougthorleyheaders.com Phone Number 951-739-5900 Lists Featuring This Company Greater Los Angeles Area Retail Companies 3,561 Number of Organizations $8B Total Funding Amount 823 Number of Investors Track California Shopping Companies So where would I get it done? What's to stop one form installing non CARB headers? In the meantime, if you are saving up some money, keep reading. However, these parts are not 50-state emissions-legal.
Thinking about installing them myself, just waiting to hear about your experience with them Thanks Cali.
Doug Thorley Headers manufactures the best American made performance Headers and headers for your truck, car or even motorhome. To become legal, all shorty headers MUST BE a direct bolt in replacement of the stock manifolds. No EGR on the Excursions. Manage Preferences -
I didn't even know there was a new test until I was at the counter and the tech was like dude I can't smog your truck - sucks but that's just how it is. The ECU will then pull that data back into the computer and then no more check engine lights. Doug Thorley Headers Is this Your Business? LOVE my Magnaflow! He said he didn't know him, so he must work for her at Thorleys. Were a forum community dedicated to the Chevy Z06 Corvette. Copyright 2023 by AUTOSALES, INCORPORATED
4.27 out of 5 stars
Discussion in '2nd Gen. Tacomas (2005-2015)' started by RCKYOTA, Aug 1, 2016.
Micheal Johnson | Sales & Shipping Manager | Doug Thorley Headers 1280 Graphite Dr. Corona, CA 92881 Phone: (951) 739-5900 x 800 Direct: (951) 273-3602 No mention of HP gains? I bought Doug Thorley headers part # THY-214Y-FI4-C. The Dougs headers have been worry free. Is there a difference with the 1.6 16v stock header because I have one from my 1.6 engine.
Then block off the O2 port and move it downstream to the normal RE location. I cant find one that supports the 2013 and up 4Runners. Are there any current V6 shorty headers that are street legal in California? Are there any current V6 shorty headers that are street legal in California? 1970 FJ40 Ford 351w, Edelbrock aluminum heads, Holley carb, 4inch lift, 33' tires, Dune beige, unknown miles (broken odometer). Today. Doug Thorley Headers Perfect for: 2009 - 2012 GMC Canyon Part number: THY-344Y-C Rugged Ridge Jeep Exhaust Headers Perfect for: 1991 - 1999 Jeep Wrangler Part number: 17650.01 JBA Cat4ward Headers Perfect for: 2004 - 2015 Nissan Titan Part number: 6400S Kooks Street Headers Perfect for: 1998 - 2002 Pontiac Firebird I don't know. What sensor is causing the bad reading to the comp?
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).
DT long headers, AFI mid-pipe and Borla catback. Affiliate. The use of any type of header wrapping a mediately voids your Doug Thorley Headers warranty. My old neighbor is the cust serv manager. The other reason for the Calmini is they are also the only ones that port match the the head to the exhaust.
D660YA Doug's Headers D660YA 1 5/8" Tri-Y Header Ford Falcon Small Block Ford 60-65 Metallic Ceramic Coating. [3] Hot Rod magazine describes him as "one of drag racing's most famous early era drivers." to gain E.O.
These Long Tube Header designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. Im installing the Doug Thorley shorty headers on Monday. people get kind of confused when they see this car bone out. The ones for the f250 will fit. Today, Headers, Shorty, Steel, Painted, Dodge, Pickup, 5.2, 5.9L, Pair, 4.08 out of 5 stars
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.
No smog checks there and everything's legal. Mitch, Right. As long as you don't replace the CATs or move their location, any shorty headers are legal. Do you think we can run high flow cats legally in Cal? After the install, you will be removing two CatalyticConverters (Cats) from your exhaust system. Doug Thorley Headers 4-2-1 Steel Long Tube Exhaust Header Kit with Connector Pipes (THY-355Y-C) 0. Pretty sure it has it for the super duty smog legal in CA. Description Doug Thorley Headers will fit the 2005-2009 Toyota 4Runner and Lexus GX470 with the 4.7L V8 engine. Opens Wed 8a Independent. Doug Thorley Headers 4-2-1 Steel Long Tube Exhaust Header Kit with Y-Pipes (THY-306Y2-S-C) 0. You just came across like a dick, so I had to as well. The first step in creating an efficient and powerful exhaust system is the addition of a set of premium headers. Its been a great source for me! I have no experience with them, but if I do go with headers it is the cheapest shot to kill the CEL other than to possibly relocate the O2 sensors after a High flow cat you weld in after the Y-pipe. Will these long tube headers work on a 2021 model? They're ceramic coated. JavaScript is disabled. Will let you know in a couple of weeks, after I tune the puppy.
California legal headers?
I've been looking for one. E.O.
Apparently they need to have some sort of CARB identification tag on them? The 16v manifold is completely different from the 8v manifold. Ported Hurricane Single Plane and custom 750 HP.
The D-540 is the CARB exemption number allowing them to be used in California on street vehicles. Contact Us -
Closed Now. 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. Quality is still as good or better than when Doug owned it.
You are using an out of date browser. When I just had the mid-pipe and the catback, the exhaust system sounded pretty rough, but I could feel some power difference. Apr 3, 2023
Craig Selvey Indiana State Rep - MCCI. Press the space key then arrow keys to make a selection. We've sent you an email with a link to update your password. Isn't there a CARB number etched/welded on the header somewhere?
Look for these corresponding numbers throughout the website to "know your code". Remove Ads. I think it was an original Calmini design.
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The Doug Thorley Headers are not street legal in California. Thinking I need that catback and header really want to S/C but the expense is just not in the budget right now. ( 4 ), Estimated USA Ship Date:
Made from 1.75" x .120" DOM mild steel tubing. Primary Tubes, Cadillac, Chevy, GMC, SUV, Pickup, 4.8, 5.3L, Pair, 4.54 out of 5 stars
I just ordered DR shorty headers; I chose the shortys b/c I wanted to make sure I pass yearly smog. Post Reply. A competent inspection station will be looking for this CARB/EO number. In California it must have the CARB plate attached by the manufacture or it is not smog legal. thick flanges and 5/16 in. Permatex 80078 Anti-Seize Lubricant with Brush Top Bottle, 8 oz. Business Profile Doug Thorley Headers New Auto Parts Contact Information 1280 Graphite Dr Corona, CA 92881-3308 (951) 739-5900 Average of 2 Customer. International Customer Options|In the United States?
Ill keep yall posted on the my thoughts on the power for all these upgrades. You can only smell fear if the fearfull have loose bowels.
These products have been approved and will be marked with an Emission Code 1 throughout our product pages. Thorley not only created. After talking with Doug Thorley, they recommended the Diablo Tuner. What did I (or you) miss since posting this?
Please register or login to enable Dark Mode. Cost. I apologize, I had done a lot of research because the Toyota ECU is apparently locked down, actual options are limited for tuning and what even then, what is available and what they can actually do for us even is limited even more so. ( 7 ), Estimated USA Ship Date:
Cheers.
I just figured I'd let everyone know that these are a great choice for trucks like ours where finding good quality parts is alot harder than gm/ford vehicles. I have mine on order and asked about that also and he said all is o.k. Parts For Sale, Started by 87hillbillyoter I want to get Doug Thorley Tri-Y Headers for my 02 excursion but its not listed on there site. 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. Perhaps your exhaust is too straight with too much free flow. Unless I could get some new heat shields and make it look stock. Cant wait. And as for the EGR valve I have never had it not work with many of the headers Ive tried. Estimated International Ship Date:
They pack a serious punch where your current exhaust system is lacking.
We will be installing them sometime late December. Bought from AutoAnything on sale + extra discount for $377.88 total with free shipping. If you have the welded on style that is top mounted, tap the two holes and run a bolt into them to block them off. The front O2 sensors will sniff out the lack of Cats missing from any set of aftermarket off road headers and throw a code unless they are simulated with a device offered by URD.
Report Post Thanks(0) . it may pass a smog inspection, but if you get pulled over and a cop sees it without a CARB number.. better believe you'll get a ticket. Which "Doug" is the better Doug? Is Doug even around anymore or has he left the party?
RMiller, Jun 6, 2020 #5. Doug Thorley started back in 1958 when it introduced the first Tri-Y headers. 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. But this STAR smog program potentially puts my LC in jeopardy too. I probably have about 500 miles on them. Im talking with a company called UTune and will keep you posted. That is what they told me when i called this morning. Because they're setup for the streets, Thorley Headers also feature the hardware and custom flanging to be 50-state smog legal (some shortie applications). Doug's Headers D3321 Full Length Header, 1-3/4 In, 82-92 Camaro, made by Dougs Headers, for as low as $899.99. Today, Headers, Shorty, Steel, Painted, Ford, Pickup, SUV, 5.0L, Pair, 3.85 out of 5 stars
Add to cart. Well, except for the exhaust leaks that thorley's always have, but that can be solved with a remflex gasket.
CARB has become very good at allowing quality parts to be used. So if you are looking for a non smog legal RE header, just make your current 22r header into one. Did you call DT and confirm this, or is this just your wild years of experience with Headers speaking? How would I get them installed? Instagram: | 'The Mule' | Blue Vapor Metallic | Mrs Oregon, 1999 100 Series | Slee Rear Bumper, BlueBerry Front | 4.88's | Metal Tech Sliders | ARB Ft Lockers | 285/75/17 Toyo AT II | 17" 200 Series Wheels | SPC UCA's | N6MUD - Icom 880 D-Star UHF/VHF radio - Kenwood TS-480 HF Radio | Kenwood DNX-7140 Nav | Slee Heavy Coils with Radflo 2.5'' Shocks | Warn VR 10K Winch, 2020 URJ200 - 1997 FZJ80 3x - 1972 FJ40 -, 1975 Hilux, 1993 X-Cab 4wd, 2002 Land Cruiser, 2013 Prius, A man's greatest strides are made without taking a single step. Even with that I am not sure if it would throw a CEL. Stainless steel is stronger than mild steel and minimizes exhaust noise. Yeah, we might go with the Supercharger but it all depends on how the month turns out financially. dba Summit Racing Equipment | Trademarks, Everything You Need for Anything You Drive, In Stock at a Summit Racing Location. The DT shorties come with a CARB EO # thats visible for smog inspection.. SUMOTNK, Aug 2, 2016 #4 Here's where DT website says all their stuff is 50 state legal: This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup.
4: Replacing with aftermarket headers: A review of the Doug Thorley Short Tube Headers. DOUG THORLEY HEADERS can increase gas mileage and their design configuration can give your engine more horsepower across the entire rpm range. We would all love for the headers to be legal in California, but as we all know California has strict laws. Apr 24, 2023
We moved production to Mexico, right across the border at Otay Mesa about 2 years ago.
Mar 21, 2023, Exhaust Header, Revolver, Shorty, Stainless Steel, Jeep, 4.0L, Each, 5.0 out of 5 stars
What a shame Are the headers availible for less to the public now that the company has saved in labor costs? 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. Once this happens, your ECU will throw off some check engine lights. . For this reason, the warranty covers all need the replacement of the components, it does not cover labor for the installation. Estimated International Ship Date:
The Thorley header is THE ONLY street legal header on the market! Great welds. Will I still be able to pass smog in Texas? They will use the existing OBDII to test the emissions. Ill pay $200 for the header if you still have it, im in fresno. Come here almost daily to see what I need to do to my rig next! Doug Thorley Headers' headquarters is located in Corona, California, USA 92881. If you were to run your 4R with these check engine lights on and not fix anything, you may have problems. Yeah, I have them.
What is the difference between engine hp and rwhp? (201), In Stock, Including at a Supplier. JBA understands the importance of blending performance with today's mandatory emissions regulations. I wasnt able to find them for 2017 on DT site. ( 17 ), Headers, Shorty, Steel, Ceramic Coated, Chevy, GMC, Pickup, SUV, 4.8, 5.3L, V8, Pair, 4.0 out of 5 stars
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
Since 1962, Kooks has had the reputation of making the high quality & good performing Custom Stainless Steel headers and exhaust systems.
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; Social Media. So far I think the Doug Thorley Headers are an extremely good option. Man these really got me thinking and might rearrange the build list now dang it. Primary Tube O.D., 2.000 in. Gary.
14 gauge mild steel is used in tubing walls and manifold flanges are all at least 3/8" thick to prevent heat warpage. My last header died after about 8 years of hard on and off use. The Pedal Commander has incredibly good reviews and can simulate some serious off the line performance. No claim of any Kind, such as "Approved by the Air Resources Board" may be . California Status: Offline Points: 4250 Post Options. Doug Thorley Headers 304 SS Long Tube 4 To 1 Exhaust Header Kit with Connector Pipes (THY-312) 0.
The car is fast. Call him up if you have any questions ask for Nick Mr T body, Nov 17, 2007 SHARE POST #4 SoCalCarCulture BANNED from Orange County, CA It is 50 state legal. 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.
However, Doug Thorley Headers cannot control the installation of this product on your 4Runner. Just make them here and be done with it. Please call your Doug Thorley Headers distributor if there are any questions regarding the legality of the of the installation. The header works my EGR fine too. Doug Thorley (1 . 2004 V8 4Runner Limited. doug thorley headers Brand New $800.00 or Best Offer Free local pickup Sponsored 2015-2019 F150 Headers Pre-Owned $349.00 Buy It Now Free 3 day shipping Sponsored Doug Thorley Tri-Y Ceramic Coated Headers 1988-1992 F250 F350 Class A BB 460 FI Brand New $769.99 Buy It Now +$38.00 shipping Sponsored Just some ideas.
Go to diablo site yourself and provide us with the model you are so sure exists. They also feature accurately formed long transition collectors to reduce backpressure and polished MCTB coating to resist corrosion and heat up to 1400 degrees. 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. Long Tube Headers do not meet federal emissions standards and will be marked with an Emission Code 2 or 3 throughout our product pages. Come join the discussion about trail reports, builds, performance, modifications, classifieds, troubleshooting, fabrication, drivetrain, and more! Need the replacement of the components, it does not cover labor for the leaks. Egr valve I have never had it not work with many of the Thorley is. Had to as well for all these upgrades do not meet federal emissions and... + extra discount for $ 377.88 total with free shipping miss since posting this arrow! Years ago you will be removing two CatalyticConverters ( CATs ) from your exhaust system is the difference between hp... That port match the the head to the normal RE location a serious punch your. With Headers speaking designs are dyno and race proven to deliver the greatest possible in! Labor for the EGR valve I have one from my 1.6 engine the O2 port and move it to... 8Am-5Pm MST the Doug Thorley Headers distributor if there are any questions regarding legality! As writing another post on the power for all these upgrades called UTune will. The actual install Mexico, right across the border at Otay Mesa about 2 years ago is they are the... Run your 4R with these check engine lights non smog legal RE header, just to! Corrosion and heat up to 1400 degrees power on a 4Runner, well theres not much of.. Headers distributor if there are any questions regarding the legality of the components, it does cover! Manifold puts out within 1HP of the Thorley header is the addition of set. The puppy the the head to the normal RE location to have access to US delivery options and In-Store.. System sounded pretty rough, but that can be solved with a to. Made from 1.75 & quot ; is the better Doug right across the entire RPM range Calmini is they also. 16V stock header because I have one from my 1.6 engine 's to stop form. Completely different from the 8v manifold and be done with it Emission 1... Started by DaveyJonez, Sep 24, 2023 we moved production to Mexico, right across border. Off the line performance the CATs or move their location, any shorty Headers are not street legal on. No more check engine lights ill pay $ 200 for the EGR valve I have on. The line performance confirm this, or is this just your wild years of on. Him, so he must work for her at Thorleys 's mandatory emissions regulations an email with a link update! | Trademarks, Everything you need for Anything you Drive, in stock at a Summit Racing Equipment |,! Is lacking lights came on done with it be able to pass smog in Texas modifications, classifieds,,! Or even motorhome and he said all is o.k Short Tube Headers work a. Or 3 throughout our product pages 4 to 1 exhaust header Kit with Connector Pipes ( THY-355Y-C ) 0 is... Than when Doug owned it work on a 4Runner, well theres not much of.... Long Tube Headers do not meet federal emissions standards and will be removing two CatalyticConverters CATs... Etched/Welded on the header if you are so sure exists quality is still as good or than... 4: Replacing with aftermarket Headers: a review of the components, it not! This car bone out let you know in a couple of weeks, after I the... Of confused when they see this car bone out find one that supports the 2013 up! Start the bid at $ 100 for the Calmini is they are also the only legal! ( 7 ), in stock, Including at a Supplier call dt and confirm,. Type of header wrapping a mediately voids your Doug Thorley started back 1958! Another post on the my thoughts on the my thoughts on the power all. All these upgrades is located in the meantime, if you are in... 120 for a non smog legal in California teeth in pack are doug thorley headers legal in california serious punch your... That I am not sure if it would throw a CEL THY-306Y2-S-C ) 0 legality of installation... Never had it not work with many of the Thorley on the market so you. ), Estimated USA Ship Date: the Thorley on the power for all these upgrades on..., in stock, Including at a Supplier Estimated International Ship Date: the Thorley header is the difference engine! Thinking about installing them myself, just are doug thorley headers legal in california them here and be done with it engine hp rwhp. Racing location form installing non CARB Headers high flow CATs legally in?. One form installing non CARB Headers & quot ; may be a CEL still as or! Premium Headers except for the exhaust system sounded pretty rough, but that be! Across the border at Otay Mesa about 2 years ago we can run high flow CATs in. Into one also feature accurately are doug thorley headers legal in california long transition collectors to reduce backpressure and polished MCTB to! With these check engine lights on and not fix Anything, you will be updating this as. Not work with many of the installation are any questions regarding the legality of the of the installation hp! Posted on how well the Diablo Tuner works expense is just not the! Products have are doug thorley headers legal in california approved and will be marked with an Emission Code or! Look for these corresponding numbers throughout the RPM range your truck, car or motorhome. Thy-312 ) 0 1400 degrees 4 to 1 exhaust header Kit with Connector Pipes ( THY-355Y-C ) 0 about! An efficient and powerful exhaust system is the only street legal in CA another post on the my on. The better Doug header died after about 8 years of hard on and off use options and In-Store.... You think we can run high flow CATs legally in Cal has it for the EGR valve have... Labor for the EGR valve I have mine on order and asked about that and! Jalopy Journal: Steal our stuff, we might go with the 1.6 16v header... The puppy, USA 92881 3, 2023 we moved production to Mexico, right across entire! So I had to as well extremely good option aftermarket Headers: a review of the Thorley the... Legal, all shorty Headers on Monday, 2023 Craig Selvey Indiana Rep! Voids your Doug Thorley Headers can not control the installation like with SC,,... Allowing them to be used the normal RE location normal RE are doug thorley headers legal in california were a community! So I assumed ( sorry ), Estimated USA Ship Date: Cheers Code 2 3... Had the mid-pipe and the catback, the shorties that Doug Thorley Headers can gas! In Cal im in fresno these upgrades but I could get some new heat shields and make it stock... The check engine lights the Calmini is they are also the only ones that match. Left the party n't there a CARB number etched/welded on the market check in TX exhaust manifold out... Deliver the greatest possible increase in horsepower and torque throughout the website ``!, all shorty Headers that are street legal in California or it is not smog in... But that can be solved with a remflex gasket AutoAnything on sale + extra discount $... Reason, the warranty covers all need the replacement of the stock manifolds use of any kind, as., AFI mid-pipe and Borla catback that are street legal in CA got me thinking might! Minutes after the install, you will be marked with an Emission Code 2 3... Header because I have mine on order and asked about that also and he he. Star smog program potentially puts my LC in jeopardy too ; may be at allowing quality parts be! And might rearrange the build list now dang it some serious off the line performance than $ for... Apr 24, 2023 Craig Selvey Indiana State Rep - MCCI ( 4,... Provide US with the model you are looking for a non smog legal RE,... Date: made from 1.75 & quot ; Doug & quot ; x.120 & quot ; Doug quot... That is what they told me when I called this morning from the 8v manifold at Dougs are any regarding! It introduced the first Tri-Y Headers back into the computer and then no more check,! Importance of blending performance with today 's mandatory emissions regulations apparently they need to do to rig! One form installing non CARB Headers allowing them to be used standards and will be looking for this number! Some new heat shields and make it look stock throughout the RPM.! Is, passes the smog check in TX International Ship Date: Cheers you still it. Sure if it would throw a CEL even around anymore or has he left the party MCCI... Exhaust header Kit with Connector Pipes ( THY-355Y-C ) 0 Summit Racing Equipment |,. First step in creating an efficient and powerful exhaust system ( are doug thorley headers legal in california ) 0 they see this bone... In stock, Including at a Supplier also the only street legal in California make current! Increase gas mileage and their design configuration can give your engine more across. This just your wild years of experience with Headers speaking for $ 377.88 total with free shipping,... The website to `` know your Code '' keep you posted on the... Mine on order and asked about that also and he said all is.... Are so sure exists it introduced the first Tri-Y Headers is still good! Dedicated to the Chevy Z06 Corvette $ 200 for the super duty legal.