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Old 02-03-2013, 09:08 PM   #105
Airheaded, eg Simple
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Joined: Sep 2009
Location: Atlanta, GA, USA
Oddometer: 3,252
Originally Posted by bgoodsoil View Post
Stock muffler is 8.8lbs
I'd be REALLY surprised if the ST's muffler were that light. The thing is pretty solid stainless steel. Either way ... I did a much of measuring and the midpipe from a Kawasaki ZX-10R is exactly the right side for the output of the G/S or GS collector, and the rear collector/crossover from an 85-87 R100/80 bike.

Mated perfectly, and it now weighs ~5 pounds, where my old muffler weighed ~ 9. It's pretty quiet, no acceleration flat spots, and looks right.

'85 R80RT G/Sified <|> '73 R75/5 LWB
Simply Simple and getting more so.
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