2004 f150 custom magnaflow exhaust
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Uploader Comments (bigwillymac1029)
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get a CEL when u cut off the 2 back cats?
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0:49
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nope! from like 2003 till 2005 they put the sensors behind the back cats allowing for you to cut them off and not throw a code. DO NOT touch the front ones tho, cut them off without replacing them and you got all kinds of problems. cut the backs off and you gain some HP and maybe like .2 MPG. big difference in sound as well. poor sound quality but BOXERGUY has the exact same sound as mine. im bout to put straights back on without the rear cats and an xpipe so ill post a video when i do.
bigwillymac1029 2 years ago