Early 99 stroker: I'm not sure about the downpipe, but the exhaust is 5" straight piped, no muffler, with a 6" tip.
Bigrigr: i'll check the RPM's at 85 when I return from Texas. It's pretty high though. Just remembering off the top of my head...65 mph is where I hit 2000 RPM's. Thoughts?
Big...