I'm looking to replace my EM1's OEM midpipe once again. Over time it develops a nasty bumble bee buzz, I'd like for a quiet replacement but want more a permanent fix as a new OEM pipe will only take a couple years to develop the same noise again.

Maybe I can weld in another resonator? I just don't know out of which car. How thick is the Stock EM1 exhaust?

 

i want to say it is a 2 1/4 but i would have to check when i get home