Hot Cams Stage 2 Racing Camshaft 4281-2E for 2014-2015 Yamaha YZ450F

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem. Hotcams’ ITR technology solved this dilemma through highly engineered opening ramps not found on other cams. Using ITR technology, the critical ramp area is designed to give your engine a cleaner intake charge and a more efficient combustion cycle, making your engine more responsive at all throttle openings and giving the rider better feel and control of the engine! You will notice the difference!

The Hot Cams Stage 2 Racing Camshaft, manufacturer part number 4281-2E and vendor part number 4281-2E, is designed for riders seeking increased engine performance and sharper throttle response on the track. Developed with Hot Cams Improved Throttle Response (ITR) technology, this high-performance camshaft uses precisely engineered opening ramps to improve the intake charge and promote a more efficient combustion cycle.

Unlike camshaft designs evaluated only for peak dyno output, the Hot Cams 4281-2E is engineered to deliver useful performance across the throttle range. The result is a more responsive Yamaha YZ450F engine with improved rider control and a stronger connection between throttle input and engine behavior. This Stage 2 racing camshaft is intended for competition applications and is built for demanding track use.

Fitment: This Hot Cams Stage 2 camshaft fits 2014 Yamaha YZ450F and 2015 Yamaha YZ450F models. It is designed to use stock valve springs and rockers in most applications, and no camshaft core is required. Adjustable cam sprockets are supplied with some applications; verify the specific installation requirements for your motorcycle before ordering.

This product is not legal for use in California on pollution-controlled vehicles. In California, it is intended for race use only, and a waiver may be available. Professional installation and proper valve-train setup are recommended to ensure correct timing and reliable performance.

Features:

• High-performance Stage 2 racing camshaft for competition use
• Hot Cams Improved Throttle Response (ITR) technology
• Engineered opening ramps for improved throttle response and engine control
• Designed to use stock valve springs and rockers in most applications
• No camshaft core required
• Adjustable cam sprockets supplied with some models
• Fits 2014-2015 Yamaha YZ450F
• Not legal for use in California on pollution-controlled vehicles; race use only in California

Fitment:
2014 Yamaha YZ450F
2015 Yamaha YZ450F