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Thread: R-55 / M4 side be side test.
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Old 08-29-2007, 01:57 AM
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XFBO XFBO is offline
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ET, Im unclear if the actual exhausts are S/O's or full???

FYI- Two of my buddies have the full M4 on their '06 R6's and it is a VERY LOUD pipe.....bring ear plugs!!! Ive ridden my share of bikes and these two bikes are the loudest Ive ever ridden.....I mean it makes you cringe loud on the straights.
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