Many people like the weight savings and power gains associated with a single exhaust. However the S2000 came with a dual exhaust system from the factory. The rear bumper has a dual exhaust cut out, leaving those who choose to run a single outlet with a vacant space on the driver's side which is quite unsightly. Fastline Performance has designed a retrofit exhaust cap, made from fiberglass or high quality carbon fiber and designed to fit and look like the OEM would if the S2000 had such a design. The exhaust cap eliminates the driver's side void created by running a single set up, keep the car looking just like it should from the factory. You can also have the option to color match the exhaust cap to match the color of your car, or leave it the way it is. The Fastline Performance Exhaust Cap is a great high quality and affordable choice for any who run a single exhaust. The Fastline Performance Bumper Cap ships complete with double-sided 3M VHB tape pre-applied and secure installation!