Product Description High Performance 3 Stage Mini-Bike Header with improved flange to pipe transitionPipe exits between tire and frame. Fits most “old school” mini-bikes. Pipe now has 3 stages with final stage to accept 1 5/16″ mufflers. Black color is for pictures only, pipe is NOT coated or paintedMuffler Sold Separate. Use RLV_4104 muffler and TD_KM229 clamp