BMW F97, F98/ X3M, X4M Catted Downpipe With Heatshield

BMW F97/F98 X3M/X4M Catted Downpipe with Heat Shield

Unlock the full performance potential of your BMW X3M or X4M with this High-Flow Catted Downpipe featuring an integrated heat shield — engineered to maximise exhaust flow, improve turbocharger efficiency, and unleash the true performance and sound of the legendary S58 twin-turbocharged engine.

Designed specifically for the BMW F97 X3M and F98 X4M, this high-flow catted downpipe replaces the restrictive factory catalytic converters with premium high-flow catalytic converters, significantly reducing exhaust backpressure while maintaining a refined exhaust note. The result is faster turbo spool, improved throttle response, increased horsepower and torque potential, and enhanced exhaust acoustics.

Manufactured from premium T304 stainless steel and featuring an integrated thermal heat shield, this downpipe helps minimise radiant heat within the engine bay while protecting surrounding components from excessive temperatures. Precision TIG welding and mandrel-bent construction ensure exceptional durability, corrosion resistance, and long-term reliability under the most demanding driving conditions.

Whether paired with the factory exhaust system or a full aftermarket exhaust, this High-Flow Catted Downpipe is one of the most effective bolt-on performance upgrades available for the BMW S58 platform.

Key Features

High-Flow Catted Design

Features premium high-flow catalytic converters to significantly improve exhaust flow while maintaining a refined exhaust note.

Integrated Heat Shield

Helps reduce engine bay temperatures while protecting nearby components from excessive radiant heat.

Premium T304 Stainless Steel Construction

Manufactured from corrosion-resistant T304 stainless steel for exceptional durability and heat resistance.

Increased Exhaust Flow

Reduces exhaust backpressure, allowing the twin turbochargers to spool faster and operate more efficiently.

Mandrel-Bent Tubing

Maintains unrestricted exhaust flow and consistent pipe diameter throughout the system.

Precision TIG Welded

Engineered for superior strength and long-term reliability in high-performance applications.

Direct Bolt-On Fitment

Designed specifically for the BMW F97 X3M and F98 X4M using factory mounting locations.

Performance Benefits

• Increased horsepower and torque potential
• Faster turbo spool
• Improved throttle response
• Reduced exhaust backpressure
• Enhanced turbocharger efficiency
• Increased turbo spool and exhaust acoustics
• Ideal foundation for Stage 1, Stage 2, and higher-performance builds

Performance gains may vary depending on ECU calibration, fuel quality, and supporting modifications.

Sound Characteristics

Compared to the factory downpipes, the High-Flow Catted Downpipes provide:

• Deeper and sportier exhaust tone
• Increased turbo spool acoustics
• Improved exhaust volume without excessive harshness
• Enhanced crackles and overrun (when tuned)
• Excellent balance between daily drivability and performance

Vehicle Fitment

BMW F97 X3M (2019–2024)
BMW F97 X3M Competition (2019–2024)

BMW F98 X4M (2019–2024)
BMW F98 X4M Competition (2019–2024)

3.0L Twin-Turbocharged S58 Engine

Please Note

Professional installation is strongly recommended.

Performance gains will vary depending on ECU calibration, fuel quality, and supporting modifications.

ECU tuning is recommended to maximise performance and achieve the full benefits of the upgraded downpipes.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — including Volkswagen GTI & R models, Audi S/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.