I was wondering if it is possible to mount a short exhaust like the one that is on the 2006 r6 onto a 2005 r6 and will that mess with compression ratio's in the engine or not? If it is possible are any modifications needed to the pipe?
Thanks,
Mike
Beymer101@yahoo.com

the headpipe on the 05 is wider then the 06 r6 shorty

You could take apart an '05 exhasut can, cut the internals down shorter, and re-rivet the can back together.