Quote:
Originally Posted by jae_rex  Thanks for the info. I was considering 2.75, but if Magnaflow uses 2.5 even on the M3, it should be enough for the M52 to breathe. |
It will be fine.
I'm using
http://www.summitracing.com/parts/MPE-12148/ Muffler, 2.25 in. Inlet/Dual 2 in. Outlet, Stainless Steel, Natural, Each
Or rather, dual 2" in and 2.25" out.