For Stihl dual port muffler MS210 MS230 MS250 021 023 025 Chainsaw Exhaust ported

Brand new dual port muffler for Stihl MS210 MS230 MS250 021 023 025. Increase top end power and throttle response for faster cuts. The unique dual tip design directs exhaust away from saw and operator. Direct fit no cutting plastic needed, does not interfere with dogs or brake handle.  Easy bolt on performance. Replaces Stihl part # 1123 140 0609