BMW X3 X4 M S58 Downpipe

We are proud to introduce our WeldAffection Downpipe upgrade for your F97 & F98 BMW X3M and X4M.

Carefully engineered for maximum performance, our Downpipes are a direct-fit solution that requires no modifications.

Designed with OEM flanges and fittings, installation is seamless and straightforward — a true plug-and-play performance upgrade.

Downpipe Features:

• 100% bolt-on installation — no cutting or welding required

• Made from premium grade 304 stainless steel mandrel-bent tubing

• CNC-machined 304 stainless steel flanges for precision fit

• Fully TIG and Argon welded for durability and strength

• Catless design — ideal for race, track, or ECU tuning applications

• Significant horsepower and torque gains

• Inlet diameter: 76mm

• Outlet diameter: 76mm

• Faster turbo spool-up and improved throttle response

• Adds an aggressive, sporty exhaust note

Compatible with the following BMW models:

• 2019–2022 BMW F97 X3M – S58 engine

• 2019–2022 BMW F98 X4M – S58 engine