muffler swap vs new catback - Power Hungry Performance Forum

		Power Hungry Performance Forum > Ford F-150, Expedition, Navigator, Blackwood, Mark-LT, SVT Lightning and H-D Editions (Disabled) > 2004 to 2008 F-150 and Mark-LT
muffler swap vs new catback

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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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Sun, May 9th, 2010, 11:02 AM

JWBFX4

Triple Whopper with Cheese

Join Date: Feb 2009

Location: Tuscaloosa,AL

Posts: 804

I agree with what sburn said...if there are any gains they are very low. The only reason I had another muffler put on was just for the sound.

And that stock muffler is a monster....

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