After putting a raise package on your 2012-2018 Jeep Wrangler JK, a JKS Exhaust Extension Kit is necessary for adequate driveshaft clearance. This component increases space between the front driveshaft and the passenger-side exhaust crossover tube when fitted. Precision CNC-machined DOM steel tube spacers fit snugly against the OEM exhaust flare joints, preventing exhaust leaks while preserving flexibility. There is new hardware incorporated. The bolt-on design may be used in either direction. This item is a must-have for suspension systems that have a problem with exhaust-to-driveshaft clearance.