Delivering impressive performance gains and significant weight savings, the FMF Racing Mini Powercore 4 exhaust system is an ideal bolt-on upgrade for your Yamaha TTR90. Designed specifically to enhance your mini's power delivery, this system incorporates a Hi-Flo stainless steel header and core, robust aircraft-grade aluminium canister, and formed end caps for long-term reliability on the track. With its lightweight construction and optimised flow, the Mini Powercore 4 will make your engine feel more responsive with every throttle twist.

Features

• Hi-Flo stainless steel core and header for improved performance


• Aircraft grade aluminium canister for durability and weight reduction


• Formed end caps ensure structural integrity


• Several configuration options, including a closed course big bore system and spark arrestor version


• Pounds lighter than the standard exhaust system


• Specifically engineered for minis seeking maximum value and output


• Intended for closed course competition only

Specifications

• Item ID: 040080


• Type: System


• Header Construction: Stainless Steel


• Header Type: Hi-Flo


• Weight: 3.1 lbs


• Carburettor Warning: No

Vehicle Fitment

Yamaha

• TTR90 (2000–2007)