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Old 01-21-2013, 08:01 PM   #76
Bad knees
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Joined: Feb 2008
Location: S.F. Bay Area
Oddometer: 743
My '07 990 has Leo Vince SBKs w/40k miles on 'em: They desperately need repacking. I took a short loop today to measure the sound. I averaged about 96db with average street/road riding, but here's the breakdown:

85db @ idle; 96db @ 4kRPM; 128db @ 6kRPM; 158db @ 8kRPM

The decibel meter mike was clipped to the rear rack, above & in front of the tips, I don't know how loud it was directly behind me but none of my friends want to ride there. I'm gonna pull 'em this week, repack & re-test. I don't like loud pipes; I've got the stock mid-pipe and cans, but they're heavy.
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Old 01-21-2013, 08:15 PM   #77
Gnarly Adventurer
Joined: Sep 2010
Location: Vancouver, Canada
Oddometer: 256
FMF Q4s, affordable, MUCH lighter and cooler than stock, include spark arrester.
Dont give a hoot about the sound (would certainly prefer quieter), havent had any issues.
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