Power from a 05 YZ450?

Busy building a motard for racing in South Africa. Bike going on dyno today and was wondering what to expect (Hp). Motor standard, only FMF slip-on. Also, what can one expect by doing the head + maybe cams +......?


shoud be around 50 for a stock 450 if you do it right... i dont know the hp after mods though.

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