Quote:
Originally Posted by CHECKERED
ironically this is what I'm trying to achieve 
if the manifold make the car more quiet I can add downpipes without an increase of rumble, |
I agree as well. The lci m550 with an aftermarket exhaust sounds lumpy, and isn't smooth. It's not an engine you want to hear pushed even higher in the rev range. At least the m8 and m5 sounds smooth. The concern would be the turbos spool too fast and there's excessive torque down low causing havoc on the transmission.