Unlock the full performance of your BMW B58 Gen 2 OPF engine with the CRT Performance 200 CPSI Sport Catalytic Downpipe. Designed for vehicles without OPF/GPF, this precision-built upgrade reduces backpressure, enhances turbo spool, and delivers a deeper, sportier exhaust tone — all while maintaining moderate emissions and daily drivability.

Key Benefits

• Reduced Backpressure – Improved exhaust flow for quicker turbo response and enhanced acceleration.

• Weight Reduction – Lighter than the restrictive OEM catalytic converter.

• Optimized Flow Dynamics – Smooth mandrel bends eliminate turbulence for maximum exhaust efficiency.

• Refined Sound – Sporty, deep exhaust tone without the excessive volume of a decat system.

• Lower Emissions – 200 CPSI sport catalyst offers the perfect balance between performance and eco-responsibility.

Materials & Construction

• Handcrafted from 304 Stainless Steel – Exceptional resistance to heat and corrosion.

• CNC-Machined Flanges – Ensures perfect alignment and leak-free installation.

• High-Flow 200-Cell Catalyst – Maximizes power output while retaining partial emissions control.

• TIG-Welded by Hand – Built to motorsport standards for superior strength and precision.

Testing & Reliability

Each CRT Performance downpipe undergoes rigorous road and track testing to ensure consistent performance and durability under extreme operating conditions.

Important Notice

• Designed exclusively for vehicles without OPF/GPF filters.

• Use of a sport catalyst may not always prevent a Check Engine Light (CEL), depending on the DME calibration.

• CRT cannot guarantee compliance with emissions regulations – intended for off-road or motorsport use only.

Compatibility

• BMW G42 M240i

• BMW G20 / G21 M340i

• BMW G22 / G23 / G26 M440i

• BMW G30 / G31 540i

• BMW G32 640i

• BMW G11 / G12 740i

• BMW G06 / G14 / G15 840i

• BMW G01 X3 M40i

• BMW G05 X5 40i

For non-OPF/GPF models only.