SBU Professional ECU Flash Service 
Kawasaki ZX-4RR (2023-2025)

This ECU flash will completely re-tune your OEM ECU to maximize performance while maintaining OEM-levels of reliability. We achieve this through removal of all restrictions, optimizing of mapping and tuning. We typically see 17+ peak rear wheel horsepower at the wheel with this service, on an otherwise stock electronically ZX-4RR. Gains can be higher at mid RPM regions.

There may be less expensive flashing services out there, but what sets us apart and makes our flash such an excellent value is the extensive dyno testing and tuning we have done. Most other providers of these types of services are using generic mapping that leaves a lot of power on the table and compromises the overall smoothness of the motorcycle. We've spent countless hours on R&D and dyno development and the end result is the flash we offer.  

As development continues, we will offer free updates to customers, you only pay shipping.

PLEASE NOTE: This is a mail-in service, your ECU must be removed and shipped to us. Once you've completed your purchase a registration form will be e-mailed to the address provided and will contain the questions regarding bike modifications as well as shipping instructions. This form is required.

Features included

• Remove Throttle-By-Wire  Restrictions 
• Engine Braking adjustments
• High Load Fuel Maps
• Low Load (cruising) Fuel Maps
• Fuel Injector Proportioning
• Ignition Timing
• Immobilizer Function
• Cooling Fan Temps
• Rev-Limiter Control
• New features are added regularly.