BMW M4 F82 F83 S55 OPF 200 Cell Catted Downpipes with Heat Shields (2018–2020)

SS304 200 Cell OPF-Compatible High-Flow Downpipes with Integrated Heat Shields for the BMW M4 F82 & F83 S55

Designed for BMW M4 F82 Coupé and F83 Convertible models equipped with the S55 3.0L twin-turbo engine and factory OPF, these 200 cell catted downpipes provide a higher-flow replacement for the restrictive factory catalyst sections while retaining catalytic converters within the exhaust system.

Manufactured from high-quality SS304 stainless steel, the downpipes are engineered to withstand the extreme temperatures generated directly after the twin turbochargers while providing excellent corrosion resistance, strength and long-term durability. Each downpipe incorporates a 200 cell high-flow catalytic converter, allowing improved exhaust gas flow compared with the more restrictive factory catalyst configuration.

This version is specifically designed for OPF-equipped BMW M4 models. The factory OPF remains part of the exhaust system, while these performance downpipes replace the catalyst sections located upstream. Integrated metal heat shields surround the catalytic converter sections to help manage radiant exhaust temperatures within the tightly packaged S55 engine bay.

The vehicle-specific routing and mounting geometry are designed around the factory S55 turbocharger and exhaust connections. Original oxygen sensors and applicable OEM hardware should be transferred during installation where required. Professional installation is strongly recommended due to the turbocharger connections, sensor locations and limited access around the exhaust assembly.

Key Features:

• SS304 stainless steel construction
• 200 cell high-flow catalytic converters
• Twin catted downpipe design
• Designed for OPF-equipped vehicles
• Integrated metal heat shields
• Designed for BMW M4 F82 / F83
• S55 3.0L twin-turbo engine fitment
• Compatible with standard and Competition models
• Factory OPF remains retained
• High-temperature resistant construction
• Excellent corrosion resistance
• Reduced exhaust restriction compared with factory catalyst sections
• Improved post-turbo exhaust flow
• More pronounced performance exhaust tone
• Vehicle-specific pipe routing
• Designed around factory turbocharger connections
• Professional installation strongly recommended

Package Includes:

• 1 × Pair of SS304 200 Cell Catted Downpipes
• Integrated Heat Shields

Compatible Models: