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build diary December 14, 2006: More mufflers! First, the inlet is quite a bit smaller. I haven't measured it yet, but I think it's 2" instead of 2.5". However, the ID of the pipe going into it is significantly bigger than the Busa unit because it's a single-wall setup instead of double-wall. That's a bit of a shame for me, I have a 2.5" ID exhaust. The internal construction of the mufflers is quite different. The Busa unit is what I'd expect from a chambered design but the Kawasaki piece looks almost like a catalytic converter. It's not like that all the way though because I can't see any light through there as with a cat. I wonder which will be lower restriction? I think it's time for a little comparison test! A coworker asked me why I was messing with mufflers again. He thinks the car sounds great. Well, I wouldn't mind a bit of a volume drop at WOT but it also gives me something to do while it's cold outside and my garage is still jammed full of boxes... entry 1314 of 1439 |