I have the Fabspeed high flow cats and Xpipe (no secondary cats). With this mod and stock mufflers, the car was very noticeably healthier. I added the Eisenmann Sport last week. There is no way I would want anything louder. It is great. No drone during cruise but a banshee under load.
I would not suggest Eisenmann Race at all, for anyone who is also contemplating changing the Xpipe.
Get the Sport for a daily driver. Remove the second set of cats..... Voila! More power too.
Originally Posted by TraydenBellean
My car is a daily driver on the freeway. Coincidently, 75-80mph - my cruising speed - is right between 2-3k rpm which is where the drone under load is the worst (in my opinion). I haven't ridden in a Sport equipped M3, but it I'm thinking it might be a better daily driver choice if it's tamer than the Race. That being said... why spend $3k if you don't want to raise some hell???
2009 Space Gray Carbon Leather E90 with DCT, Tech package, and EPS. Mods: Fabspeed 200 cell cats, Xpipe w/resonators and no secondary cats, BPM tune, Euro DCT software, Eisenmann Sport Mufflers, Vorsteiner Rear Diffuser II, SWS8 subs, JL Audio XD400 bridged 2X200W, built in radar