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)
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)