BMW M3 F80 / M4 F82 F83 / M2 Competition CS F87 S55 304 Stainless Steel Downpipe Test Pipe

Product Overview

This downpipe test pipe set is designed for BMW models with the S55 twin-turbo inline-six, including the F80 M3, F82 / F83 M4 and the F87 M2 Competition and CS. Made from 304 stainless steel with a 1.5 mm wall and raw finish, it replaces the factory downpipes for motorsport and off-road builds where maximum exhaust flow after the turbos is the goal.

Key Features and Benefits

• 304 stainless steel construction
• 1.5 mm wall thickness
• Test pipe design, with no catalytic converter
• Raw, unpolished finish
• Covers S55-powered M2, M3 and M4 models

Vehicle Compatibility

The supplier lists fitment for BMW F80 M3, F82 / F83 M4 and F87 M2 Competition / CS with the S55 engine. This fitment is supplier-stated and has not been independently verified. The standard F87 M2 uses a different engine and is not included. Please confirm compatibility with us before ordering.

Product Specifications

• Product type: downpipe / test pipe
• Material: 304 stainless steel
• Thickness: 1.5 mm
• Finish: raw
• Engine: S55
• Chassis: F80, F82, F83, F87
• Package size: 75 x 22 x 19 cm
• Gross weight: approx. 4.7 kg

Installation and Usage

Downpipe replacement on the S55 is a demanding job and should be carried out by a specialist performance workshop. Removing the catalytic converters requires ECU calibration to avoid fault codes and to manage oxygen sensor readings. After fitting, check flange seals, sensor connections and heat shield clearance, and recheck fasteners after the first heat cycles.

Package Contents

Sold as a single item: the downpipe test pipe set as pictured. Gaskets, clamps, studs and sensor fittings have not been confirmed by the supplier.

Important Fitment Notice

Please send us your VIN or chassis number before purchasing so we can help confirm fitment. Test pipes are intended for off-road and motorsport use only. Removing catalytic converters from a road vehicle in New Zealand may breach emissions requirements and result in a WoF failure, and compliance remains the owner's responsibility.