Swift Springs Coilover Helper Springs - ID: 25mm (1") Gtx EnduraPro and EnduraPro PLUS for

EnduraPro and EnduraPro PLUS for your 2012-2019 BMW 3 Series Touring RWD/AWD (F31) are high-performance shock absorbers designed to replace your vehicle's original shocks (OE)

Part Number 33-344171 Part Name Shock Absorber UPC 651860923062 Adjustment Type 1-Way Body Design Threaded Body Large Bulb Screw Top (Coilover) Body Diameter (ID) 46 mm Body Material Aluminum Boot Included No Collapsed Length 13

Ride-Height Adjustable Yes Damping Adjustment Non-Adjustable Spring Rates - Front Progressive Spring Rates - Rear Progressive Quantity Full Set (Front & Rear) Notes Only for Cars with Damper Diameter 50mm (Not 48

2009 Volkswagen Golf R32 AWD (Typ 1K)

2013 Infiniti G37 Coupe 2WD (V36)

Swift Springs Coilover Helper Springs - ID: 25mm (1") Gtx EnduraPro and EnduraPro PLUS forSwift Springs Coilover Helper Springs in 25mm (1") ID and 5" length prevent your main coilover spring from dismounting the perch during droop travel, without adding meaningful spring rate to the stack. These compact 25mm ID Swift helper springs are precision engineered for small bore coilover dampers, keeping the spring securely seated under negative or zero load conditions where preloading the main spring is not possible due to ride height