oldopelguy wrote: The generic supertrapp look-alike spark arrestors for VWs are usually under $35 and do an excellent job of mellowing out exhaust when used as a resonator at the tip. I've bought from these guys in the past, always had great service, but you might hae an ACVW guy locally who'll have one on hand: http://www2.cip1.com/
what he said....cheap, effective, and adjustable.. on the monza style tips above, ive got that tip on my 924, it will give a nice throaty sound, but it wont make things any quieter..