BMW 840i B58 Downpipes

Transform your BMW 840i with KHH PERFORMANCE downpipes, engineered for improved performance and sound. Benefits include:

• Power & Acceleration Gains: Better exhaust flow for increased engine output.
• Enhanced Exhaust Sound: A fuller, sportier exhaust note for a more engaging experience.
• Weight Reduction: Lightweight materials improve agility and handling.

1.1. Our products, including downpipes, exhaust systems, and other performance parts, are intended for off-road or motorsport use only, unless explicitly stated otherwise.

1.2. It is the customer’s sole responsibility to ensure that any product purchased complies with UAE laws and regulations, including those related to road use, emissions, and noise.

1.3. Installation of downpipes or exhaust components may render a vehicle non-compliant with UAE traffic laws and may only be used in off-road or controlled environments such as tracks or events.

All parts must be installed by a qualified professional mechanic. Improper installation can lead to performance issues or vehicle damage.

We are not liable for any engine, vehicle, or component damage resulting from improper installation, misuse, or failure to tune the vehicle correctly.

Certain products, such as downpipes, may cause a Check Engine Light (CEL) or fault codes. This is a known result of modifying emission-related systems.
We are not responsible for any CELs, engine management issues, or vehicle malfunction resulting from these modifications.

Unless expressly stated otherwise, all products are sold “as-is” without any warranty, express or implied.

We do not guarantee performance gains, compatibility, or legality in the UAE or any other jurisdiction.

Unless expressly stated otherwise, all products are sold “as-is” without any warranty, express or implied.

We do not guarantee performance gains, compatibility, or legality in the UAE or any other jurisdiction.