If you upgrade your big turbo to another big turbo or stock turbo, a tune upgrade may need to be purchased. *Big Turbo Unlimited tunes only cover tuning on one big turbo per vehicle for up to 5 years. Upgrading to a built motor will require an additional tune purchase. Upgrading to a big turbo will require an additional tune purchase unless the big turbo unlimited tune option was selected initially. *Changing or adding another fuel option/aftermarket fuel system will require an add-on fee. Going from Stage 1 to Stage 3? No problem, with our unlimited tune, you're covered!* JST Performance now offers an unlimited tuning option (previously lifetime) that includes an unlimited number of re-tunes for the addition of modifications over time. *If additional modifications are added (excluding aftermarket turbochargers) during the tuning process, or after completion, a retune fee will be required for any non-unlimited tune customers. We try our best to maintain a 24-48 business hour (M-F) turn-around time for all new tunes and revisions.Ĭurious about what kind of power you will see with a custom tune? Check out our blog on ST/RS Basic Modification Paths and Power Estimates! It is the customer's responsibility to fill this sheet out and return via email to begin the tuning process. After purchase, be sure to look for the download button in order to download your tune information sheet. By adding an additional fuel, you receive a full 91/93 octane tune as well as the additional fuel tune. Step it up even more by purchasing an E30/Race Gas/WMI tune to be included with your custom tune set-up. A custom tune can be completed via e-mail or road tuning.Īdding a full E-Tune allows us to work with your car's current modification list to create a custom tune specifically for you! We automatically incorporate 5 way map switching, Flat Foot Shifting, Launch Control, Traction Control, Boost By Gear, and more in all of our custom tunes. This product is intended for customers who have already purchased a COBB Accessport and want to upgrade to a JST Performance custom tune.
FREE JSTUNED Decal, JSTUNED Colorblock Decal, Team JST Printed Decal, Team JST Decal, Team JST Lanyard, or JSTUNED Keychain with Custom Tune Purchase! Discount will be applied during checkout, just add your swag item of choice to the cart along with your custom tune! (Very Important: Don't forget to add your item to the cart!)(You may need to add this free item to your cart if using Affirm in order for the transaction to be approved by them since they will only finance orders containing physical items)
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