DG Performance 272-4170 - Krome-Lite RCM II Complete Exhaust - Chrome fits Yamaha Raptor 350 (2004 - 2011) RCM II Crome Complete System features a durable 4 in. dia. round steel muffler body (Repackable). This Lightweight complete system weighs approx. 9.0 lb.s. (Note: some weigh more and some weigh less) Features an aluminum rear end cap. Constructed from 16 ga. Mild steel tubing. The complete system offers increased throttle response, more power and torque. Standard sound level is aprox. 98 db. DG offers 4 different Quiet Core Inserts to reduce exhaust sound.