Originally Posted by LightSpeed
The difference between Stage 1 MMC and stock pipes is pretty dramatic. Stage 1 is loud, especially on acceleration in the lower gears.

The best part of them is the lower end smoothness. Not sure if that is a function of the air cleaner Venturi treatment or the exhaust.


I would hazard that it is more air in

Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys