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Exhaust Upgrade..

2K views 0 replies 1 participant last post by  DatacomGuy 
#1 ·
Will a exhaust change (muffler back) have any effect on performance, negatively?

On my 06 F150, I put in a Flow 40 dual out and lost a bit of performance. Just wondering if I'd lose any. (Assume Hemi)
 
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