The Synergy Manufacturing Shock Extension Brackets Front Lower are designed for the 2007 to 2016 JK Wrangler(2Dr), and Unlimited(4Dr). The design and build of the steel and CNC bend allows for the movement needed in the shock extension bars to raise the lower shock mounts up by two inches. The Synergy Manufacturing Shock Extension Brackets Front Lower feature the anti-corrosion and anti-abrasive powder coat finish that offers the maximum protection to the under-body suspension parts. The average installation is approximately 1-2 hours with minor experience and basic tools.