IRL V2 G90 G99 Catback Exhaust

IRL G90/G99 M5 Exhaust System

Engineered from the ground up without compromise, the IRL G90/G99 M5 Exhaust System was designed with two objectives: maximum performance and the cleanest, most refined exhaust note possible.

Unlike many exhaust systems that simply increase volume, the IRL system focuses on airflow management, exhaust gas velocity, and acoustic tuning. Every section of the exhaust has been carefully engineered to maintain optimal flow characteristics while eliminating unwanted rasp, turbulence, and harsh frequencies that commonly plague high performance BMW exhaust systems.

Using premium aerospace-grade materials, precision CNC machined components, mandrel-bent tubing, and a true performance driven architecture, the IRL exhaust delivers exceptional flow efficiency from the turbochargers to the exhaust outlets. The result is improved exhaust scavenging, reduced backpressure, faster turbo response, and increased power throughout the RPM range.

The heart of the system is IRL’s proprietary flow focused design philosophy. Pipe diameters, merge sections, transitions, and valve placement were extensively developed to create a balanced exhaust path that maximizes performance while preserving the deep, exotic character of the S68 engine. Instead of producing an overly aggressive or raspy tone, the system delivers a refined motorsport inspired sound with crisp turbo acoustics, deep low-end presence, and a powerful high RPM scream.

The modular construction allows drivers to tailor the system to their desired sound level while maintaining the engineering principles that make the exhaust perform at its highest level. Whether paired with factory catalysts or high-flow performance downpipes, the IRL exhaust retains excellent tone quality and drivability without introducing excessive drone.

Key features include:

• Premium T304 stainless steel or lightweight titanium construction
• Precision TIG welded assembly
• Optimized flow paths for maximum exhaust velocity
• Reduced backpressure for improved horsepower and torque
• Enhanced turbo response and throttle reaction
• Deep, refined exhaust tone with minimal rasp
• Motorsport-inspired acoustics without excessive drone
• Modular architecture for future upgrades
• Plug-and-play integration with factory valve systems
• Designed, tested, and validated through extensive real-world development

The result is an exhaust system that doesn’t just sound louder it sounds better. By combining advanced engineering, premium materials, and a true performance-first design, the IRL G90/G99 M5 Exhaust System delivers the perfect balance of power, sound quality, and drivability, setting a new benchmark for what a modern BMW M exhaust should be.

IRL isn’t built to be the loudest exhaust on the market. It’s built to be the best performing exhaust with the cleanest, most refined sound possible.

Professional installation recommended