I'm very interested in the Remus Powersound for my 330. I like the idea of adjustable sound. Also, it comes in quad tail pipes and seems to be the only system for the 330 which does unless I want to spend >£1k.
Here is an E90 330 start and rev
And take off ..
I would probably have the sound a little tamer, which is done by closing the pipes more. I was wondering if anyone had seen or had oopinions on this system? I've seen very little written about it at all. Also, would altering the adjustable pipes bear any influence on backpressure and power?