The 2-position Charger Race Day 2 damper—every detail perfected, every extra ounce shaved away, this is our lightest performance driven damper ever. Light. Speed. Performance. Podium. This 2P damper features two compression positions: Open or a rock-solid Lock.Damper Upgrade Kit - CHARGER RACE DAY2 2- Position SID 35mm Remote (includes complete right side internals,remote sold separately) - 35mm 100-120 Travel - SID C1+(2021+)Features:- Includes complete damper internals for an easy upgrade.- Remote options available. Choose from TwistLoc Ultimate 2P, TwistLoc 2P, or OneLoc remotes (sold separately).- Compatible with previous SID Models.Compatible With:- FS-SID-SEL-C1, FS-SID-SEL2-D1, FS-SID-SEL3-D1, FS-SID-ULT-C1, FS-SID-ULT2-D1, FS-SID-ULT3-D1