IRL G90 G99 M5 MaxFlow Race Downpipes

IRL MaxFlow Race Downpipes for BMW G90 & G99 M5

Unleash the full performance of your BMW G90/G99 M5 with the IRL MaxFlow Race Downpipes, engineered to maximize exhaust flow, improve turbocharger efficiency, and deliver the aggressive sound the S68 twin-turbo V8 deserves. By significantly reducing exhaust backpressure, the IRL MaxFlow Race Downpipes provide faster turbo spool, sharper throttle response, and increased horsepower and torque throughout the powerband.

Manufactured from premium 304 stainless steel, each downpipe features precision TIG welds, smooth mandrel bends, and CNC-machined flanges to ensure exceptional durability, leak-free performance, and OEM-quality fitment. Designed as a direct bolt-on replacement for the factory downpipes, installation requires no permanent modifications.

The IRL MaxFlow Race Downpipes transform both the performance and character of the G90/G99 M5, producing a deeper, more aggressive exhaust note while allowing the S68 engine to breathe as intended. Whether you’re running a factory tune or a high-performance calibration, these downpipes provide the airflow needed to support substantially higher power levels.

Features:

• Designed specifically for the BMW G90 & G99 M5 (S68 Twin-Turbo V8)
• High-flow race design for maximum exhaust performance
• Premium 304 stainless steel construction
• Precision TIG-welded with mandrel-bent tubing
• CNC-machined flanges for an OEM-quality seal
• Reduced exhaust backpressure for improved turbo efficiency
• Faster turbo spool and enhanced throttle response
• Increased horsepower and torque potential
• Aggressive, refined exhaust tone
• Direct bolt-on installation with OEM-style fitment
• Built for high-performance street and off-road competition applications

Maximum Flow. Maximum Performance. No Compromises. The IRL MaxFlow Race Downpipes are engineered for enthusiasts looking to unlock every bit of performance from the BMW G90/G99 M5.

It is a violation of Federal and Illinois State laws to use this product in a manner inconsistent with it’s labeling.  Our products are "Legal Only For Racing Vehicles Which May Never Be Used, Or Registered or Licensed For Use, Upon A Highway."