MAD S58 Catted Downpipes
Pipe size Performance downpipe
Catalyst High-flow catted
Application S58 M2 / M3 / M4
Build data

Specs that matter for this part

Hardware

Flow-focused exhaust path

Large-diameter tubing, smooth bends, and a flex section reduce restriction versus the factory exhaust path.

Validation

Catalyst configuration

High-flow catted setup. Review local emissions requirements and product notes before street use.

Requirement

Direct bolt-on hardware

Designed to retain OEM-style fitment without cutting or welding on supported applications.

Downpipes can affect emissions readiness, sound level, and calibration needs. Review the product description before ordering.

Featuring high‑flow catalytic converters and premium 304 stainless construction, these S58 downpipes increase horsepower and torque while remaining emissions compliant. They utilize smooth, mandrel‑bent piping for maximum flow and bolt directly to the factory exhaust without cutting or welding

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