Milltek Sport Large-Bore Downpipes with Twin 200-Cell High-Flow Sports Cats for BMW M2 Competition F87 S55 - Front Pipes Replace Primary Cats & OPF/GPF - T304 Stainless - Requires Milltek Cat-Back - M2C Sports Cat Downpipe Kit

Milltek Oversize Downpipe Set with 200‑cell Sports Catalysts for BMW F87 M2 Competition S55

Give your BMW M2 Competition the exhaust upgrade it deserves with Milltek’s oversize downpipe assembly using twin 200‑cell sports catalysts. Purpose-built for the S55 twin‑turbo engine, this direct‑fit front section replaces the OE front catalyst module and the particulate filter section to free up gas flow, sharpen turbo response and deliver a deeper, more engaging soundtrack. To be paired with a Milltek Sport rear section cat‑back system for correct fitment.

Why this upgrade stands out

• Pair of 200‑cell sports cats for high throughput and a refined, performance tone.
• Oversize, smoothly formed tubing that minimises restriction and helps the turbos spool faster.
• Constructed from 304‑grade austenitic stainless steel for strength and corrosion resistance.
• TIG‑welded, jig‑built and designed for a precise, factory‑like installation on the F87 chassis.
• Acoustically developed for an assertive note with excellent cruising manners.
• Engineered in the UK by Milltek’s specialist team.

What you will feel and hear

• Reduced back pressure for crisper throttle response.
• Quicker turbo ramp‑up and improved mid‑range urgency.
• A richer, more purposeful exhaust sound when combined with a Milltek rear system.

Fitment and configuration

• Vehicle: BMW M2 Competition F87 Coupé with S55 engine.
• Replaces: Front catalytic converter assembly and OPF or GPF section.
• Catalyst spec: Two 200‑cell per square inch sports catalysts integrated into the downpipes.
• System pairing: Must be used with a Milltek Sport cat‑back rear section.

Installed by enthusiasts, proven by customers

We have fitted this Milltek sports catalyst downpipe kit on multiple M2C builds at MJ Modifications. Feedback has been consistently positive, with customers praising the sharper response and mature, motorsport‑inspired tone.

Professional installation

For expert fitting and support, choose MJ Modifications in Warwickshire. Request a quotation by emailing info@mjmodifications.co.uk and our team will be happy to assist.

Important notes

Altering or removing particulate filters and changing catalytic converter configurations may not be road legal in all regions. Check local regulations and MOT requirements before purchase. Intended for motorsport or off‑road use where applicable. Professional installation and appropriate calibration may be advisable.

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