Introducing the Yoshimura RS-12 System Yam (Part Number: 234840S320), the ultimate exhaust solution for dirt bike enthusiasts. After extensive development and testing with top athletes and engineers, the RS-12 has been designed to outperform the competition. Its aggressive asymmetrical design maximizes muffler volume, enhances power, and ensures ample clearance for your tire and brake caliper. The matte carbon fiber end cap not only looks stunning but also simplifies maintenance compared to traditional designs. Upgrade your ride with a system that combines cutting-edge technology and sleek aesthetics. Features: * Feature 1: Aggressive, asymmetrical shape maximizes muffler volume and manages sound while providing more clearance for tire and brake caliper. * Feature 2: Precision machined joints for enhanced durability and performance. * Feature 3: Works-look matte carbon fiber end cap with intricate details for a premium appearance. * Feature 4: New carbon fiber cap design eases servicing compared to traditional sandwich mounting systems. * Feature 5: Patent pending Precision Taper Fit (PTF) insert ring for improved fit and performance. * Feature 6: Tapered muffler body inlet design for optimal airflow and power enhancement.