Originally Posted by enrita
put some catless dps with the Bastuck and you get the BEST sound for the 335i
catted dps work fine as well as I can tell you from my personal experience! looks very nice, congrats on that. I also agree that it takes at least 500 miles to break in the exhaust, mine got the current sound (which I just love) after around 1000 km. I wish a similar valence were available for the sedan as well...