Bull-X 2.75″ downpipe, BMW M3 F80 / M4 F82

Bull-X 2.75″ downpipe, BMW M3 F80 / M4 F82

A downpipe is one of the most popular upgrades for a turbocharged engine. Efficient exhaust flow is important for a turbo system, and a freer-flowing pipe can provide a sportier sound while improving throttle response and power potential. Read more about the different downpipe types in our Futurez guide.

This product does not have model-specific ECE approval. It is intended for motorsport and other off-road enthusiast use. Always check the current road regulations before installation.

Bull-X 2.75″ downpipe, BMW M3 F80 / M4 F82 is a vehicle-specific stainless-steel assembly for BMW M3 F80 and M4 F82 models with the S55 engine. Its 70 mm / 2,75″ pipe size and freer-flowing design reduce exhaust back pressure and allow the turbocharger to operate with less restriction, particularly on tuned engines.

Lower back pressure can improve turbo response and throttle response while reducing thermal load on the exhaust side. The vehicle-specific design replaces the original component without unnecessary fabrication.

• Pipe diameter 70 mm / 2,75″
• Manufactured from stainless steel
• Vehicle-specific plug-and-play design
• Freer-flowing construction reduces exhaust back pressure
• Helps reduce thermal load on the turbo and exhaust side
• Optional integral heat shielding is available
• Connects to the original exhaust system
• Made in Germany
• Key fitment detail: S55B30A engine

Supplied version

Without catalytic converters.

The available catalytic-converter configurations do not include model-specific ECE approval. Do not use an unapproved product on public roads; always check the current road regulations.

Also fits OPF-equipped models, but the manufacturer states that ECU software adjustment is required.

Examples of compatible vehicles

• BMW M3 F80, including Competition and CS
• BMW M4 F82, including Competition, CS and GTS

Before ordering, verify the vehicle engine and body version, engine code and the exact vehicle coverage of the selected catalytic-converter approval.