Throttle Body Spacer Kit for 2012-2018 JK Wrangler w/ 3.6L or 3.0L Gas Engine RT Off RoadImprove the performance and fuel economy in any 12 15 JK Wrangler with an RT Off Road Throttle Body Spacer Kit. The heart of this kit is a 1 inch thick black anodized aluminum spacer that is designed to provide a smoother, faster, and more dense air charge resulting in an increase in horsepower, torque, and fuel economy. Also included in the kit is a gasket and mounting hardware. This kit works with both factory and aftermarket air intake systems.