Unlock the true potential of your BMW X3M (F97) or X4M (F98) with the CRT Performance Downpipes featuring 200 CPSI high-flow sport catalytic converters. Designed for the S58 engine, this upgrade dramatically reduces exhaust back pressure, improves turbo spool, and enhances throttle response — all while maintaining a refined, daily-drivable sound.

Key Benefits

• Reduced Backpressure – Improves turbo spool speed and sharpens throttle response.

• Weight Savings – Lighter than OEM catalytic sections, contributing to better overall performance.

• Optimized Exhaust Flow – Smooth mandrel bends reduce turbulence for consistent power delivery.

• Refined Sound Profile – Deeper, sportier tone without the harshness of a catless system.

• Lower Emissions Output – The ideal compromise between performance gains and environmental awareness.

Materials & Construction

• Handcrafted from 304 stainless steel for superior durability and corrosion resistance.

• Precision CNC-machined flanges for perfect OEM fitment.

• High-flow 200-cell catalytic cores optimized for heat and pressure resistance.

• TIG-welded joints ensure maximum strength, reliability, and a premium finish.

Performance & Testing

Every CRT downpipe undergoes extensive road and track testing to guarantee consistent performance and durability under extreme conditions.

Important Note

Installation of a sport catalytic converter may not always prevent a Check Engine Light (CEL), as modern DME systems can detect changes in catalytic efficiency.
CRT cannot guarantee compliance with local or federal emissions testing — this product is intended for off-road or motorsport use where applicable.

Compatibility

• BMW X3M F97 (2019+)

• BMW X4M F98 (2019+)