| im running a 45/5omm which looks good and sounds awesome
i think a few mm does make a difference as i beleive the factory racing 998's used to run 60mm's and they wouldnt run larger exhausts if it wasnt for a very good reason
kev, how much louder do your 54mm sound to the 50's,is it a different kind of noise or just louder
cheers
dave |