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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