BMW M2 G87 Front Downpipes – Sports Cat / Decat Version for S58 Engines

BMW M2 G87 S58 DOWNPIPE SPORT CATS / DE-CAT ASM PERFORMANCE

The ASM PERFORMANCE exhaust sections for the S58 engines are meticulously engineered to improve your vehicle sound, delivering the ultimate driving experience.

Our downpipes come equipped with a heat shield to contain heat and unleash the full power of your car during high-speed accelerations.

Our sports exhaust selection is fully backed with a lifetime warranty, ensuring quality assurance.

Features & Details

• Substantial power increase
• Specially designed smooth transition for optimized flow
• Improved spool up speed and throttle response
• Extended turbo lifespan
• Lowering under hood temperature
• Enhanced performance sound
• 100% Easy and secure bolt-on installation
• Fully tig welded and back purged crafting
• Top-tier 304L stainless steel with a 2.00mm thick wall
• Compliant with both LHD and RHD vehicles
• Backed by a lifetime warranty

These will fit the following models:

• BMW M Series G80 M3 S58 (2021+)
• BMW M Series G80 M3 Competition S58 (2021+)
• BMW M Series G80 M3 Competition xDrive S58 (2021+)
• BMW M Series G81 M3 Competition xDrive Touring S58 (2021+)
• BMW M Series G82 M4 S58 (2021+)
• BMW M Series G82 M4 Competition S58 (2021+)
• BMW M Series G82 M4 Competition xDrive S58 (2021+)
• BMW M Series G83 M4 Competition Convertible S58 (2021+)
• BMW M Series G83 M4 Competition xDrive Convertible S58 (2021+)
• BMW M Series G87 M2 (2023+)

What is the difference between a sport cat and a decat?

Sport Cat Downpipes

Catalytic Converter Included: Sport cat downpipes include a high-flow catalytic converter. This helps reduce exhaust emissions while still allowing for increased flow compared to standard catalytic converters.

Emissions Compliance: They are designed to be street-legal in many areas, as they still filter harmful emission, though regulations can vary by region.

Performance: Sport cat downpipes strike a balance between performance and emissions compliance. They offer a noticeable increase in horsepower and torque compared to stock downpipes, but might not be as free-flowing as decat downpipes.

Sound: The sport cat downpipes provide a moderate increase in exhaust sound over the stock system.

Decat Downpipes

No Catalytic Converter: Decat downpipes eliminate the catalytic converter entirely, resulting in zero filtration of exhaust gases. 

Higher Performance: They allow for maximum exhaust flow, which can result in significant performance gains, particularly for turbocharged engines.

Emissions Non-Compliance: Decat downpipes are typically illegally for street use in most regions due to their complete lack of emissions control. They are generally indented for track use or off-road racing.

Emissions Non-Compliance: They produce a louder and more aggressive exhaust note.

The de-cat exhaust version is available for motorsport and off-road use exclusively worldwide.