Big gains from ARH Headers
The problem is that without independent documentation I was able to blow off their claims as bogus marketing crap. But NOOOOO. Now I have LTs and X-pipe "on the list."
(Genuinely not upset, just kidding around. Thanks for taking your time to provide the proof.)
(Genuinely not upset, just kidding around. Thanks for taking your time to provide the proof.)
450rwhp already looks obtainable with full O/R exhaust and an intake and custom tune. I can only imagine the gains possible when people begin dabbling with different cams and such!
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austin101385
'10-14 Shelby Mustangs
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Oct 2, 2015 01:00 PM




