The characteristic of the L15B with CVT is low and medium speed torque. The exhaust emphasizes this range while improving power in the higher rev ranges. The main pipe is SUS 304 stainless steel with 60mm diameter and the tail section adopts a street silencer style. A high quality sound and elegant style matches the sedan's appearance. A 60mm front pipe is also included for additional performance. Proximity Exhaust Noise: 85 db Accelerated Running Noise: 74 db Weight 21.0 kg