Originally Posted by KF_6133
I was curious about this so I checked youtube, someone did that with aa alxeback on, it made an obvious difference compared to just had the axleback on the car, there's more rumble for sure, but I think it came out pretty good, although it's just a liiiiiiiiiiiile bit louder from ur word..
When I had taken the secondary cats off, I was still on a completely stock exhaust, so the difference was small, but still there. Once I changed it all up as I expressed on a thread here, it was totally different. My closest friends (all car guys) have told me that my M3 sounds like an exotic. IDK what to think about that, but with that kind of motor we got, I'm not too surprised!
2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.