[Head2k]

Hey,

I've got a 220i tuned to 255hp, running an M235i M performance muffler.

Is there anything that can be done here? I've got an appointment for a muffler delete, but i'm getting second thoughts, as the sound already is pretty good and i don't wanna start DYIing this shit too much, thinking about resale value, turbo pressure (?) and other possible complications.