The BMW M3/M4 G80 Prepreg Carbon Diffuser Trim is a premium carbon fiber rear bumper trim specifically developed for the BMW M3 and M4 G-Series. This high-quality prepreg carbon fiber diffuser trim transforms the rear of your BMW with an aggressive, race-inspired look while reducing weight. Perfect for the BMW enthusiast looking for subtle yet impactful styling upgrades.
Advantages
- Premium prepreg carbon fiber construction
- Aggressive diffuser-inspired design
- Significant weight loss compared to OEM
- Improved visual impact rear
- UV resistant clear coat finish
- Perfect bolt-on fit without modifications
Material & Construction
This diffuser trim is crafted from high-quality prepreg carbon fiber, the best material available for automotive carbon fiber components. Prepreg carbon fiber is produced by pre-impregnating carbon fibers with epoxy resin under controlled conditions, resulting in a superior strength-to-weight ratio and a perfectly consistent weave.
Each diffuser trim is precision-formed in an autoclave under high pressure and temperature, ensuring optimal resin ratios and eliminating air bubbles. The result is a component that is not only lighter than the original trim but also stronger and stiffer.
The diffuser trim is finished with a UV-resistant clear coat that protects the characteristic carbon fiber weave from fading due to sunlight and weather. The deep, gloss finish emphasizes the premium quality of the material.
Design & Styling
The diffuser-inspired design of this carbon fiber trim gives the rear of your BMW M3 or M4 an aggressive, race-oriented look. The trim accentuates the lines of the rear bumper and creates a more dynamic, sporty stance.
The carbon fiber weave texture is visible through the clear coat, creating a premium, high-tech look that perfectly complements the modern design of the G80/G82 series. The contrast between the glossy carbon fiber and the bodywork creates a striking visual impact.
The trim is designed to perfectly match the original mounting points and rear bumper contours, resulting in a factory-fit look without gaps or imperfections. The result is a subtle yet impactful upgrade that underscores your BMW's sporting intentions.
Installation & Assembly
The diffuser trim is designed as a direct replacement for the original BMW trim and requires no modifications to the vehicle. It attaches using the original mounting clips and automotive-grade double-sided tape.
Installation can be carried out by an experienced mechanic or BMW specialist. The process involves removing the original trim and installing the carbon fiber trim using the original mounting points. Expected installation time is 1-2 hours.
For optimal adhesion of the double-sided tape, the rear bumper must be thoroughly cleaned and degreased before installing the trim. It is recommended not to wash the tape for the first 48 hours after installation to allow it to fully cure.
Compatibility
- BMW M3 G80 Sedan (2021+)
- BMW M3 G81 Touring (2022+)
- BMW M4 G82 Coupé (2021+)
- BMW M4 G83 Convertible (2021+)
- Compatible with both pre-LCI and LCI models
Please note: Before ordering, please check whether your vehicle is equipped with the standard M rear bumper. Vehicles with optional diffusers may have different mounting points.
Technical Specifications
| Material
|
Prepreg Carbon Fiber |
| Weave pattern
|
2x2 Twill |
| Finishing
|
UV-resistant Clear Coat (Gloss) |
| Weight
|
0.8 kg (OEM: 1.5 kg) |
| Weight saving
|
0.7 kg |
| Installation type
|
Bolt-on (direct replacement) |
| Production process
|
Autoclave |
| Compatibility
|
G80/G81/G82/G83 (2021+) |
Maintenance & Warranty
The carbon diffuser trim requires minimal maintenance thanks to its UV-resistant clear coat. Clean the trim regularly with a soft microfiber cloth and pH-neutral shampoo. Avoid harsh chemicals and abrasives, which can damage the clear coat.
For optimal protection, the trim can be periodically treated with a carbon-specific detailing spray or wax. This enhances the shine and provides extra protection against weather and road grime.
2-year manufacturer's warranty against material and workmanship defects. The warranty does not cover damage resulting from improper installation, impact, misuse, or normal wear and tear. Please retain your proof of purchase for warranty claims.
Frequently Asked Questions
-
Is this real carbon fiber? Yes, this is high-quality prepreg carbon fiber, the best material for automotive carbon fiber components.
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Will this trim fit my M3 Touring? Yes, it's compatible with all G80/G81/G82/G83 models (2021 and up).
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Can I install this trim myself? Yes, with basic tools and some experience, installation is possible. Professional installation is recommended.
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Does the carbon discolor in sunlight? No, the UV-resistant clear coat protects the carbon from discoloration.
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How much weight do I save? The carbon trim saves about 0.7 kg compared to the original BMW trim.
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Is this a complete diffuser? No, this is a diffuser trim that replaces the original trim. It's not a complete diffuser.
