Featuring 304 Stainless Steel and aluminium, with TIG-welded construction and billet aluminium mounting directly on the muffler can. Uniquely track tested to improve delivery and pulling power with performance gains while reducing weight over the stock system. Welded construction – not springs – light weight magnesium end cap, removable bolts – not rivets – at the inlet cap for easy repacking, and stepped perforated cored – reduced heat – for increased durability.  

Picture for illustrative purposes only, actual product may vary.  

Restricted to closed-course use.

Fits:

• 2018 – 2019 YZ450F
• 2018 – 2019 WR450F