SAVES FACTORY SETTING AND RETURNS EASILY TO STOCK Introducing the Superchips Flashcal F5 for 2007-2018 JK Wrangler PN. 3571 We've done our homework and have loaded the Flashcal with the most sought-after options for your JK. Take full advantage of the most popular aftermarket upgrades your late model JK craves. If you've added tires or gears to your Jeep, Flashcal is a must! Key Product Features Corrects speedometer for tire upgrades between 26- 42 Speedometer recalibration for gear /axle swaps up to 5.38 Locking axle options with transfer case in 4-Hi & 4-Low (Rubicon only) Engine idle adjustability for winching Daytime running light options One touch lane change TPMS On/Off Accessory delay options (2011-17 models only - Includes adjustable delay for radios, accessory lights, and other aftermarket accessories tied to the same fuse) Headlamp delay options (2011-17 models only) Horn chirp and exterior lighting flash options when locking doors with keyless entry Reads and clears diagnostic trouble codes Internet updatable * Results and feature set may vary based on vehicle make, model, and aftermarket upgrades. Read all instructions before installation and/or operation of this product use. * This product has not been tested or validated on right hand drive Jeep applications or imported (non-American VIN based)Jeep applications. They are not supported by this product.