Bypass Valve: No

Below that layer is soft steel

Meets the latest 4 STROKES standards as recommended by the manufacturers : Standards: API SM and JASO MA

keeping it cooler in extreme conditions and allowing for additional adjustability

velcro tab cuffs and bungie hem

GPR Exhaust - M3 Inox Slip-On for BMW F 850 GS Adventure - 2018 to 2020 K-Type-Tire Chains Bypass Valve: NoGPR developed the M3 Inox after the victories in the Moto3 World Championship. It has a removable racing grill and CNC machined bottoms. It has a hand brushed stainless steel body, and a round shape with a diameter of 100mm. Product Features SOUND: Upgraded sound from stock exhaust. PERFORMANCE: Upgraded performance from stock exhaust QUALITY: Italian made with high grade welding WEIGHT: Lighter than stock exhaust Technical Specifications Shape: Round