BMW F20 F21 F22 F23 F30 F31 F32 F33 F34 F36 rear subframe bush insert PFR5-1921BLK

Direct-fit Powerflex Black Series rear subframe rear bush inserts for BMW F-platforms - F20, F21, F22, F23, F30, F31, F32, F33, F34 and F36 chassis. Includes M135i, M140i, M235i, M240i, 335i, 340i and 440i.

Replaces BMW 33316792510. Uses 95A Black Series polyurethane to eliminate rubber deflection, tighten rear geometry and sharpen throttle response - ideal for fast road or track day use.

• Installs into OEM housings - no machining or subframe removal needed
• Two inserts per set (one car)
• Track-proven compound: stiffer than standard rubber, more compliant than solid mounts
• Professional fitting recommended; DIY-friendly with proper support tools