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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#1
Tue, May 8th, 2012, 10:29 PM
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I agree with 88racing. I gutted my cats and kinda regret it. Not much more hp gains worth the work involved. I wish i had gotten the magna flows cats myself. Just running the canned tunes with the programmer is crappy and wont work. Like your exhaust tips there. Had my system dump out in front of back tire too and love it. Happy motoring!
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Hybrid Mode
