BMW X3 M F97 / X4 M F98 2019+ S58 3.0TT Stainless Steel Catless Dual Downpipes with O2 Sensor Ports

Product Overview

This catless dual downpipe set is designed for the 2019-onwards BMW X3 M (F97) and X4 M (F98) with the S58 3.0T twin-turbo inline-six. Made from stainless steel and fitted with oxygen sensor ports, the set replaces the factory downpipes and is intended for off-road, competition, track and tuned builds.

Key Features and Benefits

• Catless dual downpipe design
• Oxygen sensor ports included
• Stainless steel construction
• Designed for the S58 3.0T twin-turbo engine
• Intended for competition and tuned applications
• Pairs with an aftermarket midpipe or catback for a complete system

Vehicle Compatibility

The supplier lists fitment for 2019+ BMW F97 X3 M and F98 X4 M with the S58 3.0T engine. This fitment is supplier-stated and has not been independently verified. Competition models and later production vehicles may differ, so please confirm compatibility with us before ordering.

Product Specifications

• Product type: catless performance downpipe set
• Configuration: catless dual downpipe
• Material: stainless steel
• Thickness: standard (exact figure not stated)
• O2 sensor port: included
• Engine: S58 3.0T inline-six twin-turbo
• Chassis: F97, F98
• Package size: 75 x 25 x 20 cm
• Gross weight: approx. 4.0 kg

Installation and Usage

Downpipe replacement on the S58 is an involved job that should only be undertaken by a specialist performance workshop. Removing the catalytic converters requires ECU calibration to manage sensor readings and prevent fault codes. After installation, check sensor connections, flange seals and heat shield clearance, and recheck fasteners after the first heat cycles.

Package Contents

Sold as a single item: the catless dual 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 confirm 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 rules and result in a WoF failure; compliance is the owner's responsibility. Images are for reference only.