Powerflex PFR5-421 Rear Subframe Rear Mount Insert Poly Bush/Bushing Suspension Kit for BMW 1 Series E81 E82 E87 E88 (E8x) - Rear Axle Carrier/Cradle/Crossmember Mount Urethane Inserts - 2 Bush Pack

Powerflex PFR5-421 Rear Axle Subframe Rear Mount Insert Bush Kit - BMW 1 Series E81 E82 E87 E88 - Pair

Transform the way your 1 Series steers and grips. The Powerflex PFR5-421 rear axle subframe rear mount insert kit is a proven urethane upgrade that tightens up the rear end for sharper turn in, better traction and greater stability under braking and acceleration. Ideal for fast road and daily use, these high quality poly inserts curb unwanted cradle movement while keeping cabin refinement intact.

If you are looking for BMW E8x rear cradle mount inserts, urethane subframe bush inserts, rear crossmember mount bushes, performance suspension bushings or a rear axle carrier insert kit for the 1 Series, this is the one to fit.

Part number: PFR5-421
Diagram reference: 20
Quantity in pack: 2 bushes

Why this upgrade works

• Reduces subframe deflection for precise handling and a more connected rear end
• Improves tyre contact patch for increased grip and confidence through bends
• Durable polyurethane resists sagging and degradation far better than factory rubber
• Insert design works with the existing OE bush for a quick, cost effective improvement
• Retains comfort with a noticeable boost in chassis control and feedback
• Backed by Powerflex Lifetime Warranty

Vehicle compatibility

BMW 1 Series E81, E82, E87, E88

What it does

PFR5-421 fits into the original rear subframe rear mount to limit flex and movement, tightening up the rear axle response without the harshness of a full solid solution. Prefer a complete replacement bush instead of an insert? Use reference PFR5-422.

Proven by us and our customers

We run these inserts on our own builds at MJ Modifications and the difference is immediate. Customers report cleaner turn in, more stable mid corner balance and a planted feel on bumpy roads, all without unwanted harshness.

Fitting service

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Popular search terms

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Choose Powerflex for long term performance, improved stability and excellent value from a simple bolt on upgrade.