I acknowledge that the product(s) being purchased () was/were designed and intended for closed course competition use only. The product(s) is/are neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so. By proceeding with this purchase, I , agree to only use the product(s) for closed course competition.
Unlock the true potential of your Kawasaki ZX-4RR / ZX-4R with the TST Industries WORX Program. Our Stage 1 Tune removes the extreme restrictions put in place at the Kawasaki factory and makes precise adjustments to the ECU parameters, enabling up to 43% more power compared to a factory stock bike. There's no need to settle for stock when massive gains are this easy.
PLEASE NOTE: Stage 1 tunes were designed for full system exhaust and MWR Race Air Filter, however, any aftermarket air filter should provide similar results. Stage 1 tunes can be used with the stock air filter if so desired.
SLIP-ON COMPATIBILITY: If you have a slip-on exhaust, please select "Slip-On" from the dropdown. Please be aware that this tune will work with slip-on exhausts, however, the performance gains are limited due to the restricted airflow and you will not see the same performance gains that are shown on the dyno charts or discussed on this page.
Already have a TST ECU Flash Tune and need a reflash? That's easy! CLICK HERE to learn more.
Applications:
We cannot accept ECUs outside of the North American market at this time.
You are responsible for sending us an undamaged stock Kawasaki ZX-4RR ECU. We will reflash the ECU and send it back to you ready to be reinstalled. Once an ECU is flashed, all sales are final and no refunds will be issued.
This product is part of our Worx Program!
Learn More!
CLOSED COURSE APPLICATIONS ONLY
Features
This ECU reflash was tuned using premium 91-93 octane pump gasoline. 91-93 octane should always be used when operating with this tune. DescriptionKawasaki has placed fairly aggressive restrictions on their Ninja ZX-4RR and ZX-4R by limiting the power capabilities right out of the factory. We don't know the exact purpose, but it's reasonable to assume those restrictions were put in place to meet the strict emissions requirements for on-road use. We don't have any issue with that, but when you're dragging knee at the track and chasing faster lap times, that extra engine potential could be a total game-changer. That's why we immediately put our very own ZX-4RR on the dyno and began testing and tuning. After hours at the dyno and countless laps at the track, our WORX engineers have developed an ECU flash that unlocks massive performance gains. Our Stage 1 Tune is developed for riders with a full-system aftermarket exhaust and either the stock or upgraded air filter, providing optimized fueling and ECU parameters for even better performance and shorter lap times. Break away from the pack and land your boots on the podium with the help of our TST WORX Tune. The Stage 1 Tune was created with the Akrapovic full-system exhaust and MWR Race Air Filter, but can be used with the stock air filter. Other full-system aftermarket exhausts and aftermarket race air filters should provide similar results and do not require a specific Stage 1 tune. AFTER TUNE: Please be aware that the Check Engine Light will be on and the Riding Mode and KTRC will flash after reinstalling the ECU. All of these will clear after one or two rides of at least 35-45 MPH. NORTH AMERICAN MARKET ONLY: Please keep in mind that this is only available for North American market Kawasaki ZX-4RR / ZX-4R motorcycles ONLY. All orders placed outside of the North American region will be canceled. REFLASH UPGRADE: Already have a TST WORX Tune on your ECU and need to upgrade? We've got your back! We'll perform a free reflash on any ECU we have previously flashed. CLICK HERE to learn more. Q: Is a full system exhaust required for the tune to work?
A: Yes - Our Stage 1 Tune was tuned for aftermarket exhausts and air filters to take advantage of the extra airflow and adjust ECU parameters for optimized performance. Q: Do I ship my ECU to you? A: Yes, it is your responsibility to ship an undamaged Kawasaki ZX-4RR / ZX-4R stock ECU to our facility in Florida for tuning. The ECU must be properly packed and free of any damage or contaminants to be tuned properly. Q: Where do I ship my ECU? A: 623 Pleasant Street, Lake Helen FL, 32744 - Please include your order number. Q: Do I pay for shipping if I am sending you my ECU? A: Yes - it is your responsibility to properly package your ECU and send it to our facility in Florida. Q: What is your return and warranty policy? A: Returns are not accepted for this item. Please read over our policies thoroughly on our terms and conditions page BEFORE making your purchase. TST Industries Terms and Conditions |
WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov