[t3t5]

I believe I have an Eisenmann Sport muffler that was installed 2 months ago (ordered race but it's not even close to over 75db). I have 900miles on this thing now and it's still relatively quite. I have stock DP, 2nd cats in place, stock resonator on my '08 335i.

I want to make this louder, is it possible by putting an x pipe in place of the stock resonator? I don't want to lose the sound that it gives right now and I don't want to remove any cats since im in CA.

If so, what kind of x pipe can I have the muffler shop weld in place?

Anybody have sound clips of stock cats and pipes with an x pipe on a sport eisenmann ?