This BMW M5 F90 Performance Downpipe (2017–2021) is engineered specifically for the 4.4T Twin-Turbo V8 (S63) engine, focusing on maximum exhaust flow, structural stability, and long-term durability.
Designed as a direct replacement for the factory downpipe, it eliminates restrictive airflow and unlocks the full performance potential of the S63 platform used in 2017–2021 BMW M5 F90 models.
Why Upgrade
The factory downpipe on the BMW M5 F90 (2017–2021) is designed primarily for emissions and noise compliance, which creates unnecessary exhaust back pressure—especially on tuned S63 engines.
Upgrading to a high-flow performance downpipe is one of the most effective modifications for improving turbo response, power delivery, and exhaust sound on 2017–2021 BMW M5 F90 vehicles.
Technical Specifications
| Item | Details |
|---|---|
| Vehicle Fitment | BMW M5 F90 (2017–2021) |
| Engine | 4.4L Twin-Turbo V8 (S63) |
| Material | T304 Stainless Steel |
| Flange Thickness | 10mm / 12mm / 15mm |
| Welding | TIG Welding, Double-Pass |
| Installation | Direct Bolt-On (OEM Position) |
| Application | Performance / Track Use |
Fitment & Installation
Fitment Information
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Compatible with BMW M5 F90 models from 2017 to 2021
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Fits both LHD & RHD vehicles
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Compatible with stock or aftermarket mid-pipes and cat-back exhaust systems
📌 To ensure precise fitment, please provide your vehicle year (2017–2021) or VIN before ordering.
FAQ
Q: Which BMW M5 models does this downpipe fit?
A: This downpipe is designed specifically for BMW M5 F90 model years 2017–2021 with the 4.4T S63 engine.
Q: Can this downpipe be used with your cat-back exhaust?
A: Yes. This downpipe is fully compatible with our BMW M5 F90 performance catback exhaust, providing optimal airflow and sound balance when used as a complete exhaust system.









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