Looking to replace a worn or damaged carbon fiber end-cap for your Ti-5/Ti-6 exhaust system? Pro Circuit offers a replacement kit to fit those exhaust systems that come with all the necessary hardware to help get your exhaust looking new again. Includes carbon fiber end-cap and required rivets. Note: This kit is for single can exhaust systems. Detailed Specifications: 4.5" in diameter. Hole size is 1.75".