TST WORX Performance ECU Tune for Yamaha YZF-R9 2025+

Tune Features

• Designed to be paired with a full-system aftermarket exhaust
• Can be used with stock and aftermarket air filters
• Provides horsepower and torque improvement across the rev range (when paired with aftermarket full system exhaust)
  • Notable horsepower gains achieved from 7,000 RPM to 11,000 RPM
  • 5.5% peak power increase with as much as 9% power increase before the rev limiter
  • Peak torque shifts from 7,100 RPM to 8,400 RPM
• Optimizes fuel maps
• Advanced ignition timing to improve power at top end
• ETV unrestricted at top end
• Increases rev limiter by 450 RPM
• Fan activation temperature is lowered
• Disabled closed loop
• Disabled top speed limiter
• Disabled decel fuel cut
• Disabled front wheel speed fault code
• Disabled EVAP vault codes
• Disabled catalytic converter
• Tuned on 93 pump gasoline

This ECU reflash was tuned using premium 93 octane pump gasoline. 93 octane should always be used when operating with this tune.

Description

The long-awaited Yamaha YZF-R9 delivers an exciting ride right out of the dealership, but we knew it had more to give. That’s why our WORX Racing Division engineers took everything they’ve learned from building championship-winning machines and poured it into this latest CP3-powered platform. Not only does our TST WORX Performance ECU Tune enable your R9 to deliver more horsepower, but it also raises the peak torque figures. Horsepower is raised by as much as 9%, while the peak torque is shifted up the RPM range, giving you even more room on the power curve to experience that CP3 torque goodness! This tune also optimizes the R9 by adjusting or disabling a wide range of parameters that aid in overall performance and operational improvements. Stock performance is just the beginning - upgrade your 2025+ Yamaha R9 with a tune that delivers real power you’ll feel in every gear!

This tune was specifically designed to work with aftermarket full system exhaust. Stock or MWR air filters can be used.

AFTER TUNE: Please be aware that a temporary Check Engine Light will appear and the Mode button will be temporarily disabled after reinstalling your flashed ECU. These issues will clear after two or three ride cycles and the dash will return to normal.

NORTH AMERICAN MARKET ONLY: Please keep in mind that this is only available for North American market Yamaha YZF-R9 motorcycles ONLY. All orders placed outside of the North American region will be canceled.

Ordering information

Supplied to order. Availability and dispatch timing will be confirmed after purchase.