Tips or no tips? rear cats?
#11
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#13
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Join Date: Oct 2009
Location: Colorado
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I cut out all 4 and put in hi-flos. Love the sound and no CEL. If i did it again though i would just cut the back two off. Its a cheaper way and a lot easier, with about the same effect.
#16
Found Off Road Dominating
if your worried about your SEL coming on try this, its cheap and easy to do.
http://www.f150online.com/forums/exh...-mod-pics.html
http://www.f150online.com/forums/exh...-mod-pics.html