Scorpion Downpipe

Unlock True S58 Performance.

Unleash the full potential of your BMW M3 or M4 with Scorpion Exhausts' precision-engineered downpipes. The factory S58 catalytic converters are the single biggest restriction in the exhaust system, stifling both power output and sound. Replacing them is the most effective way to improve turbo spool, increase torque, and release the true aggression of the twin-turbo straight-six.

Scorpion offers two configurations to suit your tuning goals:

• 200-Cell Sports Cat: Significantly improves flow rates over the restrictive OEM ceramic unit while maintaining a level of filtration. Ideal for fast road and track use where performance is key.
• De-Cat (Race Only): A fully open pipe design for maximum gas flow and zero restriction. This option delivers the ultimate peak power gains and the loudest possible soundtrack for dedicated motorsport applications.

Both options feature advanced thermal management. To combat the high engine bay temperatures generated by the S58, these downpipes are encased in dimpled stainless steel heat shielding, spot-welded in place to reduce heat soak and protect surrounding components.

Key Features

• Premium Construction: Manufactured from T304 motorsport-grade stainless steel for longevity and durability.
• Optimised Flow: 76mm (3") CNC mandrel-bent pipework ensures smooth gas flow and improved throttle response.
• Thermal Protection: Integrated dimpled stainless steel heat shielding drastically reduces engine bay temperatures.
• Weight Saving: Engineered to be lighter than the bulky OEM units, saving approximately 2.9kg.
• Interchangeable: Designed to fit with both the standard OEM exhaust system and Scorpion's own half-systems.

Specifications

• Pipe Diameter: 76mm (3.00")
• Material: T304 Stainless Steel
• Weight Saving: -2.91kg (approx)
• Options: 200-Cell Sports Cat OR De-Cat (Select from dropdown)
• Homologation: Not E-Check / EC Approved (Motorsport Use Only)

Vehicle Fitment

• BMW M3 (G80/G81)
  • Competition & xDrive (2021-Present)
• BMW M4 (G82/G83)
  • Competition & xDrive (2021-Present)

What's In The Box?

• 2x Scorpion Downpipes (Left & Right) - with Heat Shielding
• Fitting Kit

Important Note: Installing high-flow downpipes or de-cats will likely trigger a Check Engine Light (CEL) due to increased emissions readings. An ECU tune or remap is highly recommended to optimise performance and resolve engine management lights. These parts are sold for off-road/motorsport use only.