KFX400---Big bore kit...
#1
KFX400---Big bore kit...
'05 KFX 400 with Yoshi exhaust, Dyno-Jet, and Pro-design foam. Will a bolt on 30cc big bore kit really improve performance? I'm thinking it won't since we're not increasing the stroke at all. Best case scenario may be a little more low gear acceleration.
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jhoffy22
KLX 250S
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06-18-2011 12:17 AM