supertech31

I started with straight piping the muffler... It made hardly any difference. Also tied back the v4 baffle. But once I straight piped the resignator that puppy makes some noise! Yes I is a little drone sounding when v4 is in but it doesn't bother me, people who cry about it, or drive in M5 to stop v4 are simply over sensitive... Anyway I've had that set up for 4 months and i'm ready to knock that 3rd cat out and put a shorty performance muffler in and bend myself some duals. Thinking about square cuts out the back like the 19s are doing from the factory..