I recently drove a new M3W with <700 miles and a MMC stage 1 exhaust. It was a revalation of smoothness compared to my pre replacement 30k+ car.
It'll be interesting how my car performs with a new clutch and rollers and hope to get it back next week so will report then.
Tell us more. The B+C model is a Euro 3, so it does not have the gentler Euro 4 spec.
