Powerflex Black Series Rear Subframe Front Bush Insert for BMW 4 Series F32 F33 F36 – Part No. PFR5-1920BLK
Upgrade the rear end of your BMW 4 Series with the Powerflex Track Rear Subframe Front Bushes Insert, engineered to cut subframe movement and sharpen handling. This Powerflex Black Series insert fits into the voids of the original BMW subframe bush to deliver maximum control of chassis geometry on F32, F33 and F36 models. If you track your car or want a serious performance suspension upgrade, this is the go-to rear subframe bush insert for BMW 4 Series drivers who demand precision.
Why choose Powerflex Black Series PFR5-1920BLK
- Designed for Track and Motorsport use with Black 95 Shore A polyurethane for ultimate rigidity and control.
- Reduces subframe movement to improve traction, stability, and cornering confidence.
- Sharper steering response and tighter rear-end control for a planted, predictable feel.
- Direct insert into OEM bush voids for a focused performance upgrade.
- Trusted solution for BMW 4 Series F32 F33 F36 owners seeking a proven handling upgrade.
Key product details
- Part number: PFR5-1920BLK
- Series: Powerflex Black Series – 95 Shore A compound for maximum chassis control
- Position: Rear subframe front bush insert
- Pack contents: 2 inserts
- Diagram reference: 20
- Replaces OEM bush part number: 33316792509
Vehicle compatibility
BMW 4 Series F32 Coupe, F33 Convertible, F36 Gran Coupe.
What this upgrade delivers
By filling the voids in the original rear subframe front bush, this Powerflex insert reduces unwanted subframe movement under load. The result is crisper turn-in, improved rear-end stability, better power delivery on corner exit and a more connected feel on track. We have fitted and used these ourselves and customer feedback has been consistently positive for handling, grip and confidence.
Perfect for
- BMW 4 Series performance upgrades
- Track day and motorsport setups
- Drivers wanting a firmer, more precise rear axle
Fitting and support
Professional installation recommended. Nforcd offers expert fitting in Warwickshire. Request a quote at Sales@nforcd.com.
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Choose Powerflex PFR5-1920BLK for a proven BMW 4 Series suspension upgrade that focuses on grip, precision and control where it matters most.