05' YFZ450 SE with Rossier Exhaust

[Mobile Dyno]

05' YFZ450 SE.
Mods are:
Stock Motor, Rossier Eng. Full Exhaust, K&N w/ outerwear

Jetting with this Setup:
160main, 42pilot, yz needle on the 1st clip

Over RPM

[Mobile Dyno]

Over Speed.