AEVs 2 Spacer Lift is an economical, feature packed solution for JL owners looking to add larger tires and improve ground clearance without having to replace their factory coil springs and shocks. The AEV JL 2 Spacer Lift includes unique front and rear polyurethane coil spacers with integrated isolators and locating tabs, front and rear bump stop extensions, extended length front sway bar end links, corrosion-resistant e-coated and powder coated front and rear shock extension brackets. AEV even goes one step further and takes care of the electronics, this kit includes AEVs new ProCal SNAP for painless speedometer recalibration and more. This 2 Spacer Lift has been engineered to integrate seamlessly with the JL Wrangler. It retains the quality and tuning of the JLs factory shock absorbers, which are often superior to many of the aftermarket shocks sometimes included with similar systems in this price range. The shock extension brackets allow the factory shocks to be used without limiting wheel travel and the front sway bar end links have been extended to ensure bind-free functionality. AEVs ProCal SNAP is a simple, electronic recalibration module that plugs into your vehicles OBDII diagnostic port. It utilizes the stereos audio equalizer to input the numerical values for your new tire size- saving you time and money by not having to make a trip to the dealership for speedometer recalibration. The ProCal SNAP also has the ability to recalibrate for axle gear ratio as well as transfer case gear ratio changes. AEVs 2 Spacer Lift provides a more aggressive appearance and without sacrificing the comfortable factory ride quality that drivers have come to appreciate in modern day Jeeps, especially the JL Wrangler. Proudly made in the USA and backed by AEVs Lifetime Warranty.