Re-Tune/Tune Update Wrangler windows down and a soundtrack

windows down and a soundtrack of engine rumble

This Performance Racing 180-Degree Thermostat is designed for a lower activation temperature that allows for the coolant to flow through the engine sooner

if you remove the damper bolt

Superior short pulse width control and state of the art matching make these injectors easy to tune and provide great drivability

Designed as a direct-fit replacement

Re-Tune/Tune Update Wrangler windows down and a soundtrack*ONLY FOR CUSTOMERS WITH AN UNDERGROUND TUNE ALREADY INSTALLED IN THEIR VEHICLE* Installed a 180 Thermostat, Throttle Body, or Other Mods? Optimize your vehicle with a Re Tune! Required if you purchased a tune over 30 Days Ago. Does Not Include Cams, Injectors, or Added Force Induction. For more questions, please email us at sales@undergroundtuningusa. com Does Not Include Burbles, Advanced Burbles, Super Burbles, Transmission Tune, Or MDS Delete This