Powerflex PFR5-4030 Dual-Mount Rear Differential Bracket (Rear Diff Mount) for BMW F80 M3, F82 M4, F87 M2 (F8x) - CNC Aluminium
Powerflex PFR5-4030 Dual-Mount Rear Differential Bracket (Rear Diff Mount) for BMW F80 M3, F82 M4, F87 M2 (F8x) - CNC Aluminium
  • Load image into Gallery viewer, Powerflex PFR5-4030 Dual-Mount Rear Differential Bracket (Rear Diff Mount) for BMW F80 M3, F82 M4, F87 M2 (F8x) - CNC Aluminium
  • Load image into Gallery viewer, Powerflex PFR5-4030 Dual-Mount Rear Differential Bracket (Rear Diff Mount) for BMW F80 M3, F82 M4, F87 M2 (F8x) - CNC Aluminium

Powerflex PFR5-4030 Dual-Mount Rear Differential Bracket (Rear Diff Mount) for BMW F80 M3, F82 M4, F87 M2 (F8x) - CNC Aluminium

Regular price
£279.54
Sale price
£279.54
Regular price
Sold out
Unit price
per 
Tax included. Shipping calculated at checkout.

Powerflex Dual-Mount Rear Differential Bracket for BMW F80 M3 - Part Number PFR5-4030

Unlock sharper throttle response, reduce drivetrain movement and eliminate rear-end clunk with the Powerflex Dual-Mount Rear Differential Bracket. Perfect for BMW F80 M3 owners who want a rock-solid rear diff mount for fast road and track use, this is the essential rear differential upgrade for the F8x platform.

Key search terms: Powerflex PFR5-4030, Powerflex rear diff mount, BMW F80 M3 rear differential bracket, F8x dual mount diff bracket, F80 M3 rear differential bush upgrade, BMW M3 M4 M2 diff brace, rear subframe mount, wheel hop reduction, F80 rear diff movement fix.

Why upgrade the rear differential bracket on your F80 M3

BMW’s factory subframe has provision for two rear differential mounting bushes, but only one offset OE rubber bush is used as standard. Under hard launches, on-off throttle changes and track work, this single bush becomes a pivot point. The result is excessive diff twist, accelerated bush wear, wheel hop and an unsettled, clunky rear-end. Many owners see wear around 30 to 40k miles, especially on tuned cars.

What the Powerflex PFR5-4030 Dual-Mount does

  • Converts the rear diff to a true dual-mount using the secondary OE subframe position
  • Prevents differential twist under load for cleaner power delivery
  • Reduces drivetrain movement for improved throttle response
  • Stabilises on-off throttle behaviour for a more consistent chassis feel
  • Improves tyre-to-road power transfer and reduces wheel hop
  • Lowers stress on all fitted bushes for longer life

Engineered to perform

  • CNC machined from 6082 high-tensile aluminium
  • Satin black anodised for corrosion resistance and durability
  • Optimised for high stress and deflection yet equally suited to standard or modified cars
  • Works with a single OE bush or dual aftermarket bushes

In the box

  • Powerflex Dual-Mount Rear Differential Bracket - PFR5-4030
  • M14 bolt
  • Thread locker
  • Powerflex keyring

Compatibility and notes

Designed for the BMW F8x platform including M2, M3 and M4. Ideal for the F80 3 Series M3. Diagram reference: 30.

Road Series - for road and fast road use. Powerflex Road Series bushes improve road holding and chassis performance by controlling unwanted suspension flex. Benefits include prolonged tyre life, improved performance, increased safety and greater cost-effectiveness.

Recommended complementary bushes

  • PFR5-4026 Rear Diff Mounting Bush - 80A durometer - use in both rear subframe mounting positions for dual-mount setup
  • PFR5-4025 Rear Diff Front Mounting Bushes - for the front diff mounts and ultimate differential control

Fitment

The bracket can be installed without fully removing the subframe, though professional fitting is recommended for best results and alignment. For expert installation, contact Nforcd in Warwickshire for a fitting quote: Sales@nforcd.com.

Trusted by enthusiasts

We have fitted and used this upgrade on customer and in-house F8x builds with excellent feedback. Owners report noticeably tighter rear-end control, reduced wheel hop and a more connected drive on both fast road and track.

Technical details

  • Part number: PFR5-4030
  • Material: CNC machined 6082 aluminium, satin black anodised
  • Number of bushes in pack: 1
  • Replaces OEM bush part numbers where applicable: 33172284775

SEO fitment and keywords

BMW F80 M3 rear diff mount, F80 M3 dual mount differential bracket, Powerflex PFR5-4030, F8x rear differential upgrade, BMW M3 rear diff bush, F80 wheel hop fix, BMW M3 rear subframe differential mount, F80 M3 track car parts, performance rear diff bracket, aluminium diff bracket.