HMF Engineering : Sport Series - Full System

by crazy250exrider 302 days 22 hours 10 minutes ago
Pros: Gives me alot more kick on bottom end
Cons: nuthin
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by killer400ex 1 year 69 days 22 hours 10 minutes ago
Pros: it gave my 400ex a bit more punch, and the sound is amazing
Cons: nothing
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by powermadd250ex 1 year 195 days 22 hours 10 minutes ago
Pros: increases both top end and low end speed. makes my 250ex sound like a 450r.
Cons: nothing
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by sandshredder 1 year 319 days 22 hours 10 minutes ago
Pros: Great power Gains from bottom to top end.
Cons: none
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