Exhaust Pipe w/ LED Light: Creative design with LED Light when it's connected with the your car/truck, producing amazing visual effects. Carbon fiber muffler tip is resonated to enhance sound while protecting the exhaust pipe from sun/rain and avoiding rusting and deformation : 2.5 inch inside diameter inlet, 4 inch outside diameter outlet, 6.5 inch overall length Style: Bolt On - Carbon Fiber Sleeve with Rolled Edge Design.