Last Updated: 11/21/09
Doug Thorley Headers made by Doug Thorley Headers

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Reviews Doug Thorley Headers Reviews & Discussions:

"three inch is not needed. Doug Thorley headers, magnaflow muffler for performance flowmaster for sound, new y pipe if you want but it wont do to much."

Posted on 11-20-2009, 10:31 PM by 8387

" You will need to take the rear plate off the sensor and plug it into your computer (Has to be a PC). I love mine. I have it calibrated for TRD Intake and TRD Exhaust. I have since thrown on some Doug Thorley headers so I will get it re-tuned soon hopefull"

Posted on 09-20-2009, 07:50 AM by 7928

"I've got a 1999 PreRunner 2.7L Auto with some mods (Doug Thorley Headers, Jardine CATBACK Exhaust, Bilsteins, and Transmission Cooler) pulling a Casita 17' LD. I'm at 5000 elevation (New Mexico) but overall the combination seems to work for me. Of course I"

Posted on 09-11-2009, 10:46 AM by 2816

"I've read posts where people have passed emissions with the Doug Thorley headers on TN. That set up allows you keep 2 of the 4 mufflers as well as the oxygen sensors behind the headers if you keep the stock exhaust in place. That's the route I'm considerin"

Posted on 09-05-2009, 03:16 PM by 18625

"im looking for a set of doug thorley headers for a 96 tacoma 4wd v6... anybody got any for sale??????"

Posted on 09-01-2009, 07:58 PM by 16322

"I've got a 1999 Tacoma PreRunner 2.7L with auto transmission. I've made some mods to include Doug Thorley Headers, Jardine CATBACK exhaust, Bilstein shocks and a Transmission Cooler. I'm pulling a 17' Casita LD and so far so good. I turn off the OD and tur"

Posted on 08-24-2009, 08:10 PM by 2816

"get a high flow cat for your truck, and couple that up with a dynomax super turbo muffler.....should see some decent gains there.....also, get some doug thorley headers if you want."

Posted on 08-22-2009, 08:00 AM by 1475

"Does anybody know if you put doug thorley headers on a 2.7 tacoma......will that effect my mpg? Does it give it that much more power, or is it even worth it? I have heard rumors about a supercharger or a turbo kit for the 2.7. Any info on that?..."

Posted on 08-17-2009, 05:59 PM by 21186

"doug thorley headers will increase hp/torque enough. I would look into that if i were you."

Posted on 08-16-2009, 04:07 PM by 19373

"so if putting doug thorley headers on a 4cyl will increase the power band, hows my mileage gonna look by that? cause essentially, im runin a jardine catback now and then with headers is that gonna screw it up performance wise?"

Posted on 08-10-2009, 07:15 PM by 7660

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