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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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#7
Mon, January 31st, 2011, 07:09 PM
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Ok guys I got the cat problem fixed....I gutted them. Now I need help with a cat back exhaust what size exhaust pipe should I go with for true duals? Also what kind of muffler? I was also thinking about an x pipe would that help any with performance?
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