Originally Posted by M3Mikey
+ 1 Mantis. I went with the Eisenmann sport in fear of the race being to loud. I think if your worried about it or even have to second guess yourself, then go with the quieter one.
Me too. I went with the Sport exhaust and so far it is awesome. No too loud...definately not as soft as the OEM one. Just right!
'12 F10 550i (Dinan Stage 5, LSD, Intercoolers, CF Intake/Brace, Shockware, Springs, Eisenmann Race Exhaust, CF rear difuser, Giovanni "Lindo" Graphite 20" wheels)
'10 e71 X6 35iDrive SAV (Space Gray) - Gone
'06 e85 Z4 M Roadster (Black Metallic) -Gone
'08 e92 M3 coupe (Sparkling Graphite) -Gone