Milltek Large-Bore De-Cat Downpipe for BMW F80 M3 & M3 Competition Saloon (20142018, Non-OPF/GPF) Fits Milltek Sport Cat-Back Only Stainless 304 Requires 2x 18307851168

Milltek Race Front Section - Primary Catalyst Delete for BMW M3 F80 S55 Saloon 2014 to 2018 - Non OPF or GPF - For use with Milltek rear system

Unlock the sound and response your S55 deserves with this British-made Milltek race front pipe. Built from 304-grade stainless steel with free-flowing, mandrel-formed tubing, this primary cat delete front section reduces backpressure, sharpens turbo spool and adds a harder-edged motorsport tone. If you are searching for an F80 M3 straight pipe front section, M3 Competition race pipe, turbo down pipe upgrade, primary cat delete pipe or F80 M3 track exhaust front section, this is the go-to choice for enthusiasts and tuners in the UK.

Crafted in the UK to precise tolerances, the oversized, smooth-radius design maintains exhaust gas velocity for improved throttle response and a more urgent feel through the rev range. The corrosion-resistant 304 stainless construction is built to last and looks as good as it performs. Pair it with your Milltek rear section for a cohesive fit and an aggressive, purposeful soundtrack on throttle.

Why choose this Milltek front pipe

• Oversized, mandrel-formed tubing for reduced restriction and quicker turbo response
• High quality 304 stainless steel throughout for durability and heat resistance
• Designed to connect to Milltek cat-back systems only for perfect alignment and sealing
• Developed and hand-finished in Britain for consistent fit and finish
• Delivers a louder, crisper, more motorsport character from the S55 twin-turbo
• Ideal for Stage 2 hardware setups, track builds and performance-focused M3 owners

Vehicle compatibility

• BMW M3 F80 Saloon including M3 Competition
• Years 2014 to 2018
• Non OPF and Non GPF models only
• Front section connects to Milltek rear system only

Installation and required parts

Requires 2 x 18307851168 for installation. These can be ordered from your local BMW retailer.

Professional fitting available

For a seamless install and alignment, we recommend professional fitting. MJ Modifications offers expert installation at our Warwickshire workshop. Request a quote by emailing info@mjmodifications.co.uk.

What our customers say

We run this Milltek hardware on our own builds and customer cars. Feedback is consistently positive - excellent fitment, noticeable response, and a genuine track-inspired sound when paired with the Milltek rear system.

Notes: for off-road and motorsport use in the UK. Not for road use where emissions equipment is required.

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