SKU: DI-BM/CA/9/G / UPC: 3831126403287
Akrapovic DI-BM/CA/9/G 2021+ BMW M3 (G80)/M4 (G82) Rear Carbon Fiber Diffuser – High Gloss
This Akrapovic rear carbon fiber diffuser delivers precise aerodynamic enhancement for 2021+ BMW M3 G80 and M4 G82 models. Crafted from premium pre-preg carbon fiber with a high gloss finish, it replaces the factory unit for better airflow management and increased downforce at high speeds. Drivers gain a sharper rear stance and performance edge through reduced weight and optimized rear styling.
Key Features
- Material – Pre-preg carbon fiber construction autoclaved for maximum strength and lightweight design at 1.7 kg
- Finish – High gloss clear coat for showroom-ready appearance and UV protection
- Aerodynamics – Directs exhaust gases and underbody airflow to generate downforce and stability
- Fitment – Bolt-on installation with no modifications required for Base, Competition, xDrive, CS, and CSL variants
- Durability – Motorsport-grade quality withstands track abuse and daily driving
- Weight Savings – Lighter than OEM plastic diffuser for improved handling balance
Specifications
| Detail | Value |
|---|---|
| Brand | Akrapovic |
| Type | Rear Diffuser |
| Compatibility | 2021+ BMW M3 G80 / M4 G82 |
| Material | Pre-preg Carbon Fiber |
| Finish | High Gloss |
| Weight | 1.7 kg / 3.75 lbs |
| MPN | DI-BM/CA/9/G |
| Country of Origin | Slovenia |
| Warranty | 2 years |
Whats Included
- 1x Rear Carbon Fiber Diffuser – High Gloss
- Stainless steel mounting hardware
- Installation instructions
Product Notes
- Special order item with typical lead time of 2-4 weeks
- Direct bolt-on replacement for OEM diffuser
- Compatible with Akrapovic exhaust systems and OEM setups
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 2021-2025 | BMW | M3 Base | G80 Sedan |
| 2021-2025 | BMW | M3 Competition | G80 Sedan |
| 2022-2025 | BMW | M3 Competition xDrive | G80 Sedan |
| 2024 | BMW | M3 CS | G80 Sedan |
| 2021-2026 | BMW | M4 Base | G82 Coupe |
| 2021-2026 | BMW | M4 Competition | G82 Coupe |
| 2021-2026 | BMW | M4 Competition xDrive | G82 Coupe |
| 2025 | BMW | M4 CS | G82 Coupe |
| 2023 | BMW | M4 CSL | G82 Coupe |
Why Choose Akrapovic?
- Motorsport heritage from MotoGP and World Superbike victories
- Handcrafted in Slovenia with rigorous quality controls
- Engineered for track performance and street usability
- Seamless integration with BMW M performance parts
Frequently Asked Questions
- Q: Is professional installation required?
- A: Bolt-on design allows DIY install with basic tools in 30-60 minutes
- Q: Does it fit with stock exhaust?
- A: Yes, fully compatible with OEM and aftermarket exhausts
- Q: What is the weight reduction over OEM?
- A: Approximately 2-3 kg lighter than factory plastic diffuser
Shipping & Handling
- Method: UPS / FedEx Ground
- Availability: Special order – ships within 2-4 business days of order confirmation
- Packaging: Oversized box dimensions 43 x 22 x 10 inches, shipping weight 5 lbs
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