[xlover]

Originally Posted by RPM1123

Looks like the exhaust isn't a recycled MPPSK part, it's an entirely new system:
M340i exhaust
F30 MPPSK exhaust

Wow yea, radically different design. but seems to have the same core element, integral flaps to the main exhaust. However, with the addition of another flap on the right exhaust.

if anyone has experienced MPPSK... cold start is LOUD, probably too loud for a casual buyer considering this exhaust has to support a much broader audience
maybe this is to give essentially 3 levels of exhaust?
-Cold start 1 pipe
-warmed up 2 pipes (normal mode, behavior like current 340 exhaust)
-sport mode internal flaps open (LOUD MODE)