Ok I really like the way my muffler sounds and it cost me $110 so I don't want to get rid of it. I do have to get a bigger exhaust though so I can turn the boost up. Is it a waste of time to do 2.5" piping and have it go through a 2.25" muffler? Will it bottleneck it too much? BTW it's just a straight through muffler. TIA
#30898, "RE: 2.5" exhaust + 2.25" muffler inlet." In response to Reply # 1
There might not be a bottleneck. Some mufflers actually have a larger baffle tube and a smaller inlet. Look inside and see, you may get by with just having the inlet expanded to 2.5"