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MMX Billet Differential Inserts - BMW F2x, F3x

MMX Billet Differential Inserts - BMW F2x, F3x

Regular price £125.99 GBP
Regular price Sale price £125.99 GBP
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- With popular products we will always aim to hold stock to ensure rapid delivery times across the UK.

- With less commonly ordered products we rely on drop shipping from our suppliers, this can occasionally result in delays in delivery times.

- Where a product is required urgently please contact us first before placing your order so we can check stock and delivery times to ensure no disappointment.

- Once an order is placed we aim to be in touch within 24 hours with either your delivery details or estimated time of delivery for your products.

- Need to return an item? No problem, get in touch and we can explain the next steps.

Seen it cheaper elsewhere? Get in touch with where and how much and we'll not only do our best to match it, where possible we aim to beat it!

Got a question about this product? Get in touch via our online chat or email and our team of experts will get back to you as soon as we can with an answer.

This product is compatible with the following models and year ranges:

BMW M135i F20/F21 (2012-2016)
BMW M140i F20/F21 (2016-2019)
BMW M235i F22/F23 (2014-2016)
BMW M240i F22/F23 (2016-2020)
BMW 335i F30/F31 (2012-2015)
BMW 340i F30/F31 (2015-2019)
BMW 435i F32/F33/F36 (2013-2016)
BMW 440i F32/F33/F36 (2016-2020)

Designed and engineered in-house in the UK, the MMR differential insert kit for the BMW F2x and F3x chassis is designed to limit movement in the factory diff mounts to maintain proper suspension geometry when cornering and improve the responsiveness of the rear suspension and diff. Installation is very simple, can be performed in under an hour, and is completely reversible.

By filling small voids in the four factory mounts as well as limiting vertical movement, the insert set eliminates the associated slop to ensure that you experience a more refined, connected driving experience, especially when driving at the limit. The billet aluminium parts will not wear over time and offer a lasting performance improvement.

BILLET DIFFERENTIAL INSERTS  | BMW F2x | F3x

Worried about noise? NVH is a measurement of how much noise, vibration, & harshness gets transmitted into a vehicle’s cabin. Based on feedback, MMR inserts transfer little to none NVH into the cabin. NVH is subjective, so some users may find NVH to be increased or decreased from our rating. If you are experiencing higher than quoted NVH with this product, please evaluate the installation to ensure the components are installed correctly.

The BMW F2x and F3x series use rubber diff mounts that deflect under load, causing the rear end to feel vague and loose, as well as leading to less-than-optimal suspension geometry and increased understeer. These precision-machined billet aluminium inserts are designed to fill voids in the factory diff mounts, and limit diff movement without sacrificing ride quality or introducing any perceivable additional noise, vibration, or harshness into the cabin. The result is a more refined, connected driving experience, as well as improved effectiveness of aftermarket rear sway bar upgrades and suspension components.

These inserts were tested extensively by MMR and independent BMW enthusiasts before release on multiple F2x and F3x vehicles. Our diff inserts fit diesel, petrol, manual and auto variants.

FEATURES

  • Black Anodised 6061-T6 Billet Aluminium with stainless setter retaining
  • Designed to reduce differential movement while keeping NVH to a minimum
  • Reduces differential movement under acceleration, gear shift and deceleration
  • Fills OE bushes voids to minimise component movement  
  • Simple installation with differential remaining in situ
  • Helps maintain correct suspension geometry under dynamic loading

 

Series Model Code  Year Variant 
1 Series F20/F21 2011 - 2019
All variants
2 Series F22/F23 2013 - 2019 All variants
3 Series F30/F31/F34 2011 - 2019 All variants
4 Series F32 2014 - 2019 All variants

 

Part No: MMR12-6001

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Excellent
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Michael Rath
January 14, 2025
These guys are a pleasure to deal with; courteous, helpful and professional at all times with fast shipping on top.
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Shoaib Zaman
January 14, 2025
Very professional company and very efficient and fast on delivery of my items I would very highly recommend !
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Denise
January 14, 2025
Great selection of items, everything you need is here! Great customer service, always answered every question we had no matter how big or small. Fast delivery, overall refreshing experience. Highly recommended and we will be returning with our Puma ST!
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Matthew Roper
January 14, 2025
Great company and great bunch of people, responds to emails straight away and makes you feel like family or friends and not just a customer. Definitely would recommend and will be buying from again for sure.
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jamie gates
November 7, 2024
Could not fault them at all, I have bought multiple parts off them and every time been spot on. Customer service is on point and when I couldn’t find a part I needed I sent an email and they managed to source it and ship it out within 24 hours. Great company, will be buying off them again for sure
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1
November 6, 2024
Super fast response and delivery. Fantastic customer service. I will be buying again. Highly recommended. Thanks 🙏
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jake david Curtis
October 19, 2024
Fast delivery thank you
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Ryan Hale
October 2, 2024
Ordered a service kit for my fiesta st on September 10th and got delivery of it midday on 13th September! brilliant customer service I had a few queries before I ordered and I used the live chat on their website and my questions got answered within a few minutes! they also had an issue with the oil in the service kit but they contacted me straight away and this was resolved very quickly! I'll definitely be using them again! 10/10 would recommend!
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Evan Hegarty
September 6, 2024
Went beyond to help me with my order one of the best customer experience I’ve had in the industry, was fast delivery and kept me updated all the way and gave me some nice little surprises in my order to would definitely recommend and I will be buying again.
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Ryan Hinchliffe
September 4, 2024
Great customer service and fast delivery. Can’t complain one bit and highly recommend 🙌