BMW M3 G80 G81 / M4 G82 G83 2021+ S58 3.0T One-Piece Stainless Steel Catless Downpipes

Product Overview

These one-piece catless downpipes are designed for the 2021-onwards BMW G80 M3, G82 / G83 M4 and 2022-onwards G81 M3 Touring with the S58 3.0T twin-turbo inline-six. The one-piece stainless steel design simplifies the downpipe layout and includes oxygen sensor ports, making it suited to off-road, competition and upgraded-turbo builds.

Key Features and Benefits

• One-piece catless downpipe design
• Stainless steel construction
• O2 sensor ports included
• Suits upgraded turbo applications
• Designed for the S58 3.0T engine

Vehicle Compatibility

The supplier lists fitment for 2021+ BMW G80 M3, G82 / G83 M4 and 2022+ G81 M3 Touring with the S58 3.0T engine. This fitment is supplier-stated and has not been independently verified. Cars fitted with a particulate filter may differ, so please confirm compatibility with us before ordering.

Product Specifications

• Product type: one-piece catless downpipes
• Material: stainless steel
• Thickness: standard (exact figure not stated)
• O2 sensor port: included
• Engine: S58 3.0T inline-six twin-turbo
• Chassis: G80, G81, G82, G83
• Package size: 66 x 27 x 20 cm
• Gross weight: approx. 3.5 kg

Installation and Usage

Installing downpipes on the S58 requires significant disassembly and specialist knowledge, so a performance workshop experienced with BMW M models should carry out the work. ECU calibration is required when catalytic converters are removed. After fitting, check sensor wiring, flange seals and clearance to surrounding components, then recheck fasteners after initial heat cycles.

Package Contents

Sold as a single item: the one-piece catless downpipe set as pictured. Gaskets, clamps and fasteners have not been confirmed by the supplier.

Important Fitment Notice

Please send us your VIN or chassis number before ordering so we can help verify fitment. These downpipes are intended for off-road and competition use only. Removing catalytic converters from a road vehicle in New Zealand may breach emissions requirements and cause a WoF failure; the owner is responsible for compliance. Images are for reference only.