Running stock still..maybe this sounds weird, but my exhaust sounds throatier with the custom tunes....it sounds like an aftermarket is on there...I don't see a reason to change it out yet.
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 2008 f150 supercrew, 5.4, 3.73 LSD, tonneau cover, 275-65-18 BFG's. Gryphon programmer. XLT with XTR package. Tinted heads and tails with 8000 HID's. 4300 in the fogs. Gott's Mod. Painted grill.
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