Active Autowerke Catless Downpipes – BMW S58 G80/G82/G87 M2/M3/M4

OVERVIEW

Performance downpipes for the BMW S58-powered G87 M2, G80 M3, and G82 M4. This is the catless version for maximum exhaust flow — designed for race and off-road use only.

SPECS

• Durable construction from TIG welded 304 stainless steel with 1.5mm wall thickness
• 3 inch diameter piping to reduce exhaust restriction and improve turbo spool
• Tapers to 70mm (stock diameter) to connect to the OEM exhaust system
• Easily bolts on, no cutting or welding required

PARTS INCLUDED

• 1x catless downpipe set

TECH RESOURCES

• Off-road / competition use only — the catless downpipes remove the catalytic converters and are not emissions compliant for street use.
• A performance tune is typically required when running catless to address the catalyst efficiency monitors and avoid a check engine light.
• Covered by a 5-year/50,000-mile warranty on shell and tube ends to the original purchaser only.
• For the M3/M4 (G80/G82), pair with an Active Autowerke mid-pipe — Gen 2 Equal Length, Single, or Mid-Pipe with X-Pipe.
• This catless version no longer appears in Active Autowerke's current online catalog — contact us to confirm availability before ordering.

VEHICLE APPLICATIONS