Tein RX1 Damping Adjustable Coilover Kit 2015-2021 Subaru WRX/STi
Specifications-Hydraulic Bump Stopper (H.B.S)Camber Adjustable Lower BracketFull-Length AdjustableTwin-TubeDamping Force AdjustableMounts IncludedReplacement ServiceEDFC CompatibleDurable & ReliableHydraulic Bump Stopper (H.B.S)-Riding a third-row seat..... It's so bumpy!The solution:Hydraulic Bump Stopper (H.B.S)!Standard Shock Absorbers with Bump Rubber, Upward jolts & rebound occur. Upward jolting and repeated bouncing, driving over a bump. It takes a while to stabilize. Shock Absorbers with H.B.S, such as RX1 absorbs smoothly! The impact is absorbed; no bouncing & rapid stabilization. Even in a fully seated & loaded minivan, jolts from the rough road are reduced. Ride comfort can be enjoyed in all seats!In regular shock absorbers, bump rubber is vital to avoid damage from bottoming out. Unfortunately it causes instability, because when a large impact compresses it, energy thus amassed is released upwards.RX1 however uses the Hydraulic Bump Stopper to convert