mx47blue

Member
Dec 3, 2005
13
0
I Have a 04 YZ85 with the stock pipe and the FMF Q silencer I am going to get a FMF Shorty. Do I have to Re-tune the bike with the shorty exhaust?
 
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mx547

Ortho doc's wet dream
LIFETIME SPONSOR
Nov 24, 2000
4,784
103
yesterday, i put a shorty on my cr250. i didn't have to re-jet or anything. it did make a slight but noticeable increase in bottom and mid performance. it may be a tad louder than the DEP that was on it but not so much that it's bothersome. i am very pleased with it.

i was the only two-stroke on the gate last night. and probably the only bike that the people in the bleachers couldn't hear.
 
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