Yamaha YFZ450R (KTM style) Billet Throttle Body

Maximize Your Ride!

Unleash the full potential of your YF450R + KTM style setup with our high-performance, oversized billet throttle body!

Race-Ready Power
Designed for racing and modified engines, this upgrade takes the OEM KTM throttle body to the next level—enhancing power, throttle response, and overall performance.

Trusted by Top AMA ATV Pros:
*** Joel Hetrick, Chad Weinen, Nick Gennusa, Brandon Hoag, Jeffrey Rastrelli, Bryce Ford

Choose your size:

•  43mm: Gains accross the powerband over the KTM 44mm and 42mm. Riders notice an instant difference.
•  45mm: Emphasizes mid-to-top performance, shifting power higher in the RPM range.  

Configuration options:

•  Bare unit:  Billet unit with shaft/plate and cover. The 2nd injector blocked off. Must transfer all OEM parts from a KTM throttle body and modify wiring harness and throttle cable. Ideal for existing KTM conversions seeking extra power.
•  Assembled with all KTM OEM parts:  Ready for installation — but stile requires a modified harness and throttle cable.  Perfect for riders already familiar with KTM conversions.
•  Full kit is ready to go with our 2nd injector option: Comes with our genuine split fuel rail, Top-quality wiring jumper for OEM harness compatibility and Throttle cable — everything you need in one package!

What is a billet throttle body?

• Precision CNC-machined (5-axis) from 6061-T6 aluminum for strength, durability, and lightweight performance.
• Glass-beaded & silver anodized for a clean, sleek look.
• Chromoly shaft with black oxide coating plus 5-axis relief for maximum airflow.
• Dual ball bearings ensure ultra-smooth operation and long-lasting durability.

Run What the Pros Run!