Milltek HJS ECE Approved Sports Cat / Catted Turbo Downpipe for BMW 2 Series F22 M235i (2014+) N55 – High-Flow T304 Stainless, UK-Made Front Pipe, Direct Bolt-On, Road Legal, Fits OEM & Milltek Cat-Back Exhausts

Milltek HJS ECE Sports Cat Front Section for BMW F22 M235i 2014 onwards

Unlock extra flow and response from your N55-powered M235i with this UK-crafted sport catalyst front section. Built from high-grade T304 stainless for long-term durability and a factory-precise fit, it connects seamlessly to the standard rear section or a Milltek cat-back. Expect cleaner turbo spool, a keener throttle and a deeper, polished soundtrack that remains refined on the motorway.

Why this sport catalyst is a smart upgrade

• T304 non-magnetic stainless throughout for corrosion resistance and strength
• UK-built and hand finished for an OE-plus fit and finish
• Constant-radius bends and increased internal diameter to reduce back pressure
• Tuned tone with minimal cabin resonance for daily comfort
• HJS ECE specification catalyst for quality and everyday usability
• Bolt-on fitment that mates with the factory system and Milltek rear sections

What you will notice

• Smoother turbo flow for crisper throttle response
• Stronger pull through the revs without sacrificing mid-range torque
• Richer exhaust note that stays civil on long journeys

Tried by us, loved by customers

We have supplied and fitted this Milltek HJS ECE sport catalyst on customer builds and our own projects. Feedback is consistently positive, with owners praising the improved drivability, cleaner boost response and premium sound quality.

Vehicle compatibility

• BMW 2 Series F22 M235i Coupe, 2014 onwards

Installation and support

Professional fitting recommended. For expert installation at MJ Modifications in Warwickshire or to request a fitting quote, email info@mjmodifications.co.uk. Our team can advise on pairing this front section with the right rear system and intake hardware for your goals.

Popular search terms to help you find this product

BMW M235i sports cat, F22 M235i sport catalyst, N55 turbo outlet pipe, BMW 2 Series catalytic converter upgrade, M235i front pipe, BMW M235i exhaust front section, stainless sport catalyst M235i, ECE approved catalyst BMW 2 Series, UK made M235i exhaust parts, bolt-on sport cat M235i, performance catalyst for BMW F22, high flow catalyst M235i, BMW M235i tuning parts UK, M235i turbo pipe upgrade, M235i cat pipe, F22 M235i performance exhaust front section, HJS catalyst M235i, road legal sports catalyst BMW M235i.