Thinking of changing exhaust - Power Hungry Performance Forum

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Thinking of changing exhaust

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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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Thu, October 11th, 2012, 11:30 AM

RevoErick

Double Whopper

Join Date: Oct 2011

Location: Kentucky

Posts: 45

Thinking of changing exhaust

I have a 2008 F150 Crew 4x4 with the 87P & 87T custom tunes. They were written with the truck having a true dual exhaust. The current mufflers are side by side and are going bad. I was thinking of going with a dual in dual out flowmaster muffler. Will this affect my tunes or will I need to adjust anything on the setpoints? Thanks.

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