This exhaust system features durable 304 Stainless Steel, TIG-welded construction and billet aluminium. Uniquely track tested to improve hit, delivery and pulling power with substantial performance gains over the stock system. 

Features Stainless Steel header, mid pipe and aluminium muffler

Lightweight Magnesium end cap; riveted on for increased durability

Welded construction for reduced weight

Stepped perforated core to reduce heat

Removable bolts at inlet cap for easy repacking

Note: For closed-course competition only.

Fits:

• 2014 – 2017 YZ450F
• 2016 YZ450FX