BMW
Genuine BMW 3 Series G20 G21 M340i M Performance Rear Diffuser
Genuine BMW 3 Series G20 G21 M340i M Performance Rear Diffuser
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The RM Series is comprised of a damper cartridge secured within a threaded outer body. This specific design requires a lubricating grease to be applied during the assembly process between the two damper and threaded body to avoid metal-to-metal contact. In order to keep the two components from touching each other and generating noise transmission you will need to periodically clean out the old grease and apply new grease.
This is a simple process that can be done with just a few common tools. It does not require you to open the internals of the dampers themselves and therefore you do not need to have the dampers re-pressurized after carrying out this procedure. Please contact us on info@mlperformance.co.uk for more information and a step-by-step guide on how to complete this maintenance.
As a result of this required maintenance, we do not recommend the RM Series for road use over the BR Series or ER Series.
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Fitting service at Xatrix, West Yorkshire
We can offer a fitting service for this part. Contact us for a fitting quote.
G20 3 Series M Performance Rear Diffuser. Striking eye-catcher on the rear of the vehicle: the M Performance rear diffuser is made of either carbon or high-quality PUR and perfectly adapted to the rear design, depending on the style you choose. It ensures an even more exclusive appearance - and impressively enhances the vehicle's sporty appearance.
- Exclusive, sporty and elegant look.
- perfectly matched to the design and geometry of the vehicle
- Perfectly adapted to the rear design.
- high quality carbon, handmade
- Made of high quality, UV, temperature and water resistant PUR.
Gloss Black Diffuser:
- BMW 3 Series G20 (2017 — 2021)
- 318d, 320d, 320dx, 320i, 320ix, 330d, 330dx, 330e, 330i, 330ix, M340i & M340ix
- BMW 3 Series G21 (2018 — 2021)
- 318d, 320d, 320dx, 320i, 330d, 330dx, 330i & M340ix
Please Note: The Gloss Black Diffuser mandatory requires the Genuine BMW 3 Series G20 G21 M Performance High Gloss Black Rear Bumper Trim (Inc. 320d, 320i, 330d & 330i) or the Genuine BMW 3 Series G20 G21 M Performance High Gloss Black Rear Bumper Trim (M340i & M340ix) depending on the model.
Carbon Fibre Diffuser:
- BMW 3 Series G20 (2017 — 2021)
- M340i & M340ix
- BMW 3 Series G21 (2018 — 2021)
- M340ix
Please Note: The Carbon Fibre Diffuser mandatory requires the Genuine BMW 3 Series G20 G21 M Performance High Gloss Black Rear Bumper Trim (M340i & M340ix).
To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.
51192455821 (Gloss Black)
Manufactured by
BMW - Genuine BMW M Performance Parts.
Warranty
Two years manufacturer warranty if VIN is provided during check out.
Fitted Photos
Carbon Fibre Rear Diffuser

High Gloss Black Rear Diffuser


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