
HOT CAMS Exhaust Camshaft - Level 1 (manufacturer part number: 4164-1EX) designed for Yamaha YZ450F CJ15. Developed by HOT CAMS and tested on dynamometers, then validated by teams, this Stage 1 exhaust camshaft aims to enhance engine response for motocross use without requiring other major modifications.
This Stage 1 is ideal for riders looking to optimize the rev range and responsiveness of the bike without altering the original configuration. Two complete sets of shim kits are provided to allow for precise valve clearance adjustment and proper timing for your cylinder head.
Warning: installing a modified camshaft requires adherence to manufacturer recommendations and checking clearances and torque specifications. Entrust the operation to an experienced mechanic if you are not familiar with timing operations.
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