Powerflex Rear Subframe Front Bush Inserts (Pair) for BMW 1 Series F20 F21 | Road Series Poly Bushes | PFR5-1920 | Replaces OEM 33316792509
Powerflex Rear Subframe Front Bush Inserts (Pair) for BMW 1 Series F20 F21 | Road Series Poly Bushes | PFR5-1920 | Replaces OEM 33316792509
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  • Load image into Gallery viewer, Powerflex Rear Subframe Front Bush Inserts (Pair) for BMW 1 Series F20 F21 | Road Series Poly Bushes | PFR5-1920 | Replaces OEM 33316792509

Powerflex Rear Subframe Front Bush Inserts (Pair) for BMW 1 Series F20 F21 | Road Series Poly Bushes | PFR5-1920 | Replaces OEM 33316792509

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Powerflex Rear Subframe Front Bushes Insert for BMW 1 Series F20 F21 - Part No. PFR5-1920

Unlock sharper handling and tighter rear-end control on your BMW 1 Series with the Powerflex Rear Subframe Front Bushes Insert, part number PFR5-1920. Designed for the BMW F20 and F21 1 Series, these performance bush inserts fit into the voids of the original rear subframe front bush to reduce subframe movement, improve stability and enhance chassis response. Ideal for road and fast road use, this Road Series upgrade is a proven, cost-effective way to increase confidence, grip and consistency without sacrificing everyday usability.

At Nforcd we run these inserts on our own builds and customer cars. Feedback is consistently positive, with noticeable improvements in rear axle precision, traction over bumpy roads and more predictable cornering. If you are chasing a confident, planted feel from your F20 or F21, this is a must-have suspension upgrade.

Why choose Powerflex Rear Subframe Inserts PFR5-1920

  • Reduces unwanted rear subframe movement for cleaner, more accurate handling
  • Improves road holding and chassis performance by controlling flex
  • Supports better tyre life and more even wear
  • Enhances stability under acceleration, cornering and braking
  • Road Series specification for daily driving and fast road performance
  • Cost-effective upgrade that targets a known weak point on the BMW 1 Series F20 F21

What this part does

This insert set is engineered to fit into the voids of the factory rear subframe front bushes. By filling those gaps it limits subframe shift under load, which keeps geometry more consistent. The result is a more direct feel from the rear axle and a more connected driving experience, especially on uneven surfaces and during hard cornering.

Fitment and key details

  • Vehicle compatibility: BMW 1 Series F20, F21
  • Location: Rear subframe front bushes
  • Diagram reference: 20
  • Series: Road Series, suitable for road and fast road use
  • Number of inserts in pack: 2
  • Replaces OEM bush part number: 33316792509
  • Powerflex part number: PFR5-1920

Professional fitting available

For fitting, we recommend booking with Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.

Why buy from Nforcd

  • Performance parts specialists with hands-on experience of this exact upgrade
  • Tried, tested and loved by our team and our customers
  • Focused advice to get your F20 or F21 handling exactly how you want it

Common search terms

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