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Forced Induction SystemsDetailed discussions regarding cold-air intake systens, superchargers, turbo chargers, and other induction systems for your vehicle.
This is a discussion thread titled "Doug Thorley 5.7L Headers", within the Forced Induction Systems forum, part of the Technical & Vehicle Assistance Forums category.
Anyone with these installed have anything to say about the performance increase?
__________________ 2007 Tundra DC Limited - Slate Metallic 5.7L 4WD
Red Rock Leather -- Navigation -- TRD Exhaust -- TRD Sway Bar -- Volant Intake -- JBA Headers -- ReadyLift 2.5" front spacer/1" rear blocks -- Pro Comp front coilovers with TRD package springs and Bilstein shocks -- Pro Comp 6066 wheels with BFG A/T KO 305/55R20 -- Bushwhacker Pocket Fender Flares (Color Keyed)
Anyone with these installed have anything to say about the performance increase?
I have a posted in another thread how I feel about the DT headers! I will say it again..... "a must have upgrade" just all over improvement, and a top end that will make you think twice about the theory of relativity and the time space continuum!
I have a posted in another thread how I feel about the DT headers! I will say it again..... "a must have upgrade" just all over improvement, and a top end that will make you think twice about the theory of relativity and the time space continuum!
Any noticeable change in the MPG? How has the truck learned with the headers?
Any noticeable change in the MPG? How has the truck learned with the headers?
LSK, I need to update my MPG history, I will do that today and post what my observed MPG is.
As far engine management learning the new flow characteristics of the headers, I can only GUESS by the results in performance that it has made the adjustments, the truck has been through 3 tanks of fuel since the headers were installed. If I had to sum up the difference in one word, that I have noticed changed, that word would be "RESPONSIVE"! The motors response to throttle change is immediate, and at times very intense! I like the top end acceleration the most... 70-110mph really SWEET!
LSK, I need to update my MPG history, I will do that today and post what my observed MPG is.
As far engine management learning the new flow characteristics of the headers, I can only GUESS by the results in performance that it has made the adjustments, the truck has been through 3 tanks of fuel since the headers were installed. If I had to sum up the difference in one word, that I have noticed changed, that word would be "RESPONSIVE"! The motors response to throttle change is immediate, and at times very intense! I like the top end acceleration the most... 70-110mph really SWEET!
Awesome!! That off the line torque is what really puts a smile on our face!!
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Re: Doug Thorley 5.7L Headers
Linear Mode
