Originally Posted by PR3CI5N
Actually my BMW PE replaces the midpipes which contains resonators so its a little more than just a "muffler" system. Guarantee with my mods my exhaust added 10+hp
Thats a good point. BMW PE for the sedan is downpipe back i believe. For the Coupe its axle back.
For my E92, I have catless downpipes, stock midpipes with cats deleted and replaced with resonators. I think it sounds "OK" in terms of raspiness, but it sounds mean as F*CK when WOT. Just got my mini USB to 3.5mm adapter for the Go Pro, so i can run an external mic. If anyone is interested in hearing what this combo sounds like i can take some vids, or if you want to see the flames it shoots when I NLS from 4th-5th