BMW F97 X3M F98 X4M S58 3.5 Inch MaxFlow Race Downpipes | IRL

IRL 3.5 inch MaxFlow Race Downpipes for the BMW X3M and X4M maximize exhaust flow and turbo efficiency and deliver the aggressive sound the S58 twin-turbo inline-six deserves.

Why you need it

Lower backpressure means faster turbo spool, sharper throttle response and more horsepower and torque throughout the powerband, with the airflow to support substantially higher power on a factory or high-performance tune.

Fits

• BMW F97 X3M (S58)
• BMW F98 X4M (S58)

Features

• 3.5 inch high-flow race design
• Premium 304 stainless steel, TIG-welded, mandrel-bent
• CNC-machined flanges for an OEM-quality seal
• Direct bolt-on replacement, no permanent modifications
• Deeper, more aggressive exhaust note

Good to know

Intended for off-road and competition use only, not for registered road use. A check engine light may occur. Professional installation is recommended.