MMR/MMX Billet Rear Subframe Inserts – BMW F2x & F3x (F20-F32)
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£210.00
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£210.00
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MMR/MMX Billet Rear Subframe Inserts – BMW F2x & F3x (F20-F32)
Transform the handling precision and rear end stability of your BMW with MMR/MMX Billet Rear Subframe Inserts, expertly engineered for F-Series 1, 2, 3 and 4 Series models (F20, F21, F22, F23, F30, F31, F32 & F34). These high-performance inserts are a simple yet effective upgrade that dramatically reduces subframe movement under load, helping maintain correct suspension geometry and giving you a sharper, more connected driving experience on both road and track.
Unlike stock rubber mounts that flex and deflect during cornering, acceleration and launches, these precision-machined billet 6061-T6 aluminium inserts fill unwanted voids and tighten up the rear subframe, resulting in improved response, reduced understeer and maximised performance from your suspension setup.
Installation is quick and straightforward — completed in under an hour with the subframe remaining in situ — and fully reversible, making this upgrade perfect for performance enthusiasts and daily drivers alike.
Key Benefits
- CNC-machined 6061-T6 billet aluminium for high strength and long-lasting durability
- Significantly reduces rear subframe movement under dynamic loading
- Helps maintain correct suspension geometry for sharper handling
- Improves effectiveness of existing sway bars and aftermarket suspension
- More predictable rear end behaviour during cornering and acceleration
- No compromise on ride quality or added harshness
- Virtually no increase in NVH (noise, vibration, harshness) transferred to the cabin
- Quick, simple installation in under an hour with subframe in-situ
- Fully reversible for resale or standard use
- Ideal upgrade for performance street or occasional track use
Compatible Vehicles / Fitment:
Fits the following BMW F-Series models:
- 1 Series: F20 / F21 (2011–2019)
- 2 Series: F22 / F23 (2013–2019)
- 3 Series: F30 / F31 / F34 (2011–2019)
- 4 Series: F32 / F33 / F36 (2013–2019)
All engine variants and transmissions
