This powerful, yet affordable tool, allows users to change their vehicle’s factory computer settings

This powerful, yet affordable tool, allows users to change their vehicle’s factory computer settings to suit their needs. Benefits include speedometer and gear ratio correction to compensate for tire and gear changes, Tire Pressure Monitor System control for running lower than stock pressures, daytime running lamp activation, the ability to temporarily increase the engine idle speed options for improved winching or onboard air compressor performance, and a few other neat tricks that will help installers dial in the vehicle perfectly. Consider the ProCal an essential tool to for all JK owners.

If you have any of the above requirements and want to get the maximum out of your Jeep JK Unlimited or Wrangler this spring/summer. National 4WD strongly recommends you pre-order yours now so you won't be disappointed. We anticipate this will be extremely popular as it fixes many of the issues encountered with a modified or lifted Jeep with different sized tires than stock.

(AEV) American Expedition Vehicles has released and is shipping their ProCal Module for the 2007 to 2009 Jeep JK 2 door and 4 door now.

For more details and ordering... BUY ProCal Module