Adding modifications and need an upgraded tune? No problem! This product is intended for customers already running a JSTuned ProTune who have decided to add basic modifications to their car. This can also be used to add an e85/WMI tune to your map set (if applicable). If you have more than one tune that needs to be revised due to modifications, a map revision needs to be purchased for each tune. After purchase, please email our tuner at email@example.com using the same email chain that was used during previous tuning to notify us that you are ready to begin revising your tune.
*Tunes are non-refundable once purchased
*Don't forget to throw in a set of NGK Spark Plugs when you order your custom tune! Upgrading your spark plugs or simply changing them out to a new set is just one step to ensure that your car is performing properly during the tunng process!
*We also have tons of JST Swag to choose from when you decide to join the JST team!