I already made this mistake for you. I had one installed, thinking the company's claims were true (2mpg increase, 5HP increase ect.) and all it did was.......nothing. The only thing I can tell you it will do, is add an annoying "wanna-be" supercharger whine when accelerating. If you want noticeable performance gain, I recommend a custom performance tune for your truck. And as always, a nice Flowmaster muffler and chrome piping, and new headers :lol:
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