Hot Cams Stage 2 Racing Camshaft 4165-2IN for 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 4165-2IN and vendor part number 68-2562, is engineered for riders seeking stronger performance and improved engine response on the track. Using Hot Cams’ Improved Throttle Response (ITR) technology, this high-performance camshaft features carefully designed opening ramps that help deliver a cleaner intake charge and a more efficient combustion cycle.

Unlike camshaft designs developed solely for dyno power, the Hot Cams Stage 2 camshaft is designed to improve both power delivery and throttle response. The result is a more responsive engine across throttle openings, giving the rider better feel and control. The camshaft is designed for race use and is a direct fit for select Yamaha YZ450F applications, including the 2010, 2011, 2012, and 2013 model years.

Installation is designed around stock valve springs and rockers in most applications, and no core is required. Adjustable cam sprockets are supplied with some models where applicable. Verify engine configuration and installation requirements before fitting. This product is not legal for use in California on pollution-controlled vehicles and is intended for race use only in California; a waiver may be available.

Features:

• High-performance Stage 2 racing camshaft for select Yamaha YZ450F models
• Improved Throttle Response (ITR) technology for enhanced engine responsiveness
• Engineered opening ramps promote a cleaner intake charge and efficient combustion
• Designed to improve power delivery, throttle response, rider control, and engine feel
• Designed to use stock valve springs and rockers in most applications
• No core required
• Adjustable cam sprockets supplied with some models
• Fits 2010 Yamaha YZ450F, 2011 Yamaha YZ450F, 2012 Yamaha YZ450F, and 2013 Yamaha YZ450F
• Race use only in California on pollution-controlled vehicles; waiver may be available

Fitment:
2010 Yamaha YZ450F
2011 Yamaha YZ450F
2012 Yamaha YZ450F
2013 Yamaha YZ450F