DI-BM/CA/7/G Carbon Diffuser BMW M8 F91 F92 F93
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Akrapovic 2020+ BMW M8 (F91/F92) Rear Carbon Fiber Diffuser - High Gloss

Akrapovic
AKRDI-BM/CA/7/G
3831113583541
Diffusers
Special order, usually ships in 2-3 weeks. However, if the manufacturer has this item in stock we can normally drop ship it directly to you within 3-5 business days. Contact us and we can get you an accurate ETA before placing an order.
$ 2,206.34
$ 2,206.34

Redesigned Carbon Fiber Rear Diffuser for the BMW M8 F91, F92 and F93

Transform the rear end of your 2020-plus BMW M8 Coupe (F92), M8 Convertible (F91), or M8 Gran Coupe (F93) with the Akrapovic DI-BM/CA/7/G Rear Carbon Fiber Diffuser in High Gloss. This is a completely new design versus the factory diffuser, hand-built from autoclave-cured pre-preg carbon fiber at the Akrapovic facility in Slovenia. The DI-BM/CA/7/G gives the rear of the M8 a more aggressive and sporting character while reducing rear weight, and is available in high gloss finish to complement the M8's muscular lines with a deep, UV-resistant shine.

Key Features

  • Completely New Aerodynamic Design - The DI-BM/CA/7/G replaces the factory diffuser with an entirely redesigned form that delivers a more aggressive, sport-focused rear end appearance on the M8 platform.
  • High Gloss Carbon Fiber Finish - UV-resistant clear coat applied over a premium pre-preg carbon weave, maintaining deep gloss shine across extended outdoor use and track sessions.
  • Autoclave-Cured Pre-Preg Carbon - Aerospace manufacturing process providing maximum strength-to-weight ratio, superior surface density, and consistent weave quality compared to wet-laminate alternatives.
  • Fits All M8 Body Styles - One part number covers the F91 Convertible, F92 Coupe, and F93 Gran Coupe in both M8 and M8 Competition trim levels.
  • Direct Bolt-On Fitment - Precision-engineered to use all OEM mounting points on the F91, F92, and F93. No drilling, cutting, or modification required.
  • Handcrafted in Slovenia - Each diffuser is individually assembled at the Akrapovic headquarters factory under the same quality standards as their championship exhaust systems.

This Part Fits

Year Range Make Model Trim
2020-2026 BMW M8 Coupe M8 (F92)
2020-2026 BMW M8 Coupe M8 Competition (F92)
2020-2026 BMW M8 Convertible M8 (F91)
2020-2026 BMW M8 Convertible M8 Competition (F91)
2020-2026 BMW M8 Gran Coupe M8 (F93)
2020-2026 BMW M8 Gran Coupe M8 Competition (F93)

Specifications

Detail Value
Brand Akrapovic
Part Number (MPN) DI-BM/CA/7/G
UPC 3831113583541
Product Type Rear Carbon Fiber Diffuser
Finish High Gloss
Material Autoclave-Cured Pre-Preg Carbon Fiber
Weight Approx. 3.2 kg
Country of Origin Slovenia
Warranty 2 Years
Fitment 2020-2026 BMW M8 / M8 Competition (F91 Convertible, F92 Coupe, F93 Gran Coupe)

What's Included

  • 1 x Akrapovic DI-BM/CA/7/G Rear Carbon Fiber Diffuser (High Gloss)
  • Mounting hardware kit
  • Official Akrapovic installation instructions

Frequently Asked Questions

Does the Akrapovic DI-BM/CA/7/G fit both the M8 and M8 Competition trim levels?

Yes. The DI-BM/CA/7/G is compatible with the standard M8 and M8 Competition across all three body styles: the F91 Convertible, F92 Coupe, and F93 Gran Coupe, for the 2020-2026 model years.

Is this the same part for the F91, F92, and F93 M8?

Yes. The DI-BM/CA/7/G uses one part number and fits all three M8 body styles, as the rear bumper architecture and diffuser mounting points are shared across the F91, F92, and F93 platforms.

Is the DI-BM/CA/7/G a carbon overlay of the OEM diffuser or a completely new piece?

It is a completely new aerodynamic design, not a carbon veneer applied to the factory diffuser. Akrapovic engineered an entirely new form that gives the M8 a more aggressive rear appearance while delivering genuine weight reduction over the OEM unit.

Can I install the DI-BM/CA/7/G on my M8 without professional help?

The diffuser uses all existing OEM mounting points and is a direct bolt-on replacement. Mechanically capable owners can complete the installation. Professional installation is recommended to ensure perfect panel gap alignment and to protect the carbon finish from installation stress.

What is the weight of the DI-BM/CA/7/G versus the factory diffuser?

The Akrapovic DI-BM/CA/7/G weighs approximately 3.2 kg. This represents a meaningful reduction compared to the factory plastic diffuser unit, contributing to improved rear weight distribution.

Does the DI-BM/CA/7/G require any cutting or modification of the rear bumper?

No modifications are required. The DI-BM/CA/7/G is engineered to mount directly to all factory attachment points on the F91, F92, and F93 rear bumper without any drilling, trimming, or adaptation hardware.

What finish options are available for the Akrapovic M8 rear diffuser?

Akrapovic offers this diffuser in high gloss (DI-BM/CA/7/G) and matte (DI-BM/CA/7/M) finishes. Both versions share identical carbon construction and fitment. The choice between gloss and matte is purely aesthetic preference.

How do I maintain the high gloss finish on the DI-BM/CA/7/G?

Regular cleaning with a pH-neutral automotive shampoo and thorough drying prevents water spotting. Periodic application of a UV-protective ceramic coating or high-quality automotive wax two to three times annually will extend the gloss finish and protect the clear coat from environmental degradation.

What warranty does Akrapovic provide on the DI-BM/CA/7/G?

Akrapovic covers this diffuser with a 2-year manufacturer warranty against defects in materials and workmanship when installed and maintained according to their specified guidelines.

Installation Instructions

  1. Safely raise and support the rear of the vehicle on a lift or jack stands to access the underside of the rear bumper.
  2. Locate and remove all retaining clips, bolts, and fasteners securing the factory rear diffuser to the bumper and chassis structure.
  3. Carefully detach and set aside the OEM diffuser.
  4. Test-fit the Akrapovic DI-BM/CA/7/G against all mounting locations to confirm alignment before applying any hardware.
  5. Install the supplied mounting hardware, hand-tightening all fasteners from the center outward to prevent panel distortion.
  6. Torque all fasteners to specification and verify consistent panel gaps across the full width of the diffuser relative to the bumper.
  7. Lower the vehicle and conduct a final visual inspection from directly behind the car to confirm symmetry and correct fitment.

Request For Information

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