Superchips 3570 FlashCal for Jeep Wrangler JK Corrects speedometer for tire upgrades between 22.5 inch - 44.25 inch Speedometer recalibration for gear/axle swaps ESP stability optimization Street legal TPMS adjustability (off-road options available for download) Engine idle adjust, day time running lights, one touch lane change, radio delay, head lamp delay options, horn chirp, reads and clears diagnostic trouble codes 2007 - 2010 Jeep Wrangler JK (3.8L) 2011  2013 Jeep Wrangler JK (3.6L)