JKS Manufacturing 12-18 Jeep Wrangler JK Exhaust Extension KitA JKS Exhaust Extension Kit is required for proper driveshaft clearance after installing a lift kit on your 2007 2011 Jeep Wrangler JK. When installed, this kit adds clearance between the front driveshaft and the passenger's side exhaust crossover tube. Precision CNC machined DOM steel tube spacers fit tightly to the factory exhaust flare joints which ensures no exhaust leaks while still maintaining adjustability. New hardware is included. The bolt on