Nice work, and my curiosity is satisfied regarding what's inside. Pretty much the same as E9x M3 (which has a stock exhaust that's way too quiet). And we can say this, they're ugly inside than outside.
The only stock exhaust on a BMW that I think they've got right is the E9x 335 (still a bit quiet, but a step in the right direction) and the 1M. The 1M sounds perfect IMO for a stock exhaust.
|