Mini Cooper S F56 (2014-2021) / JCW Mk3 3" Cat Back (Catback) Stainless Exhaust - Cobra Sport Performance Rear System, Resonated or Non-Resonated/Resonator Delete, 3.5" Black/Carbon Tips, T304 TIG Welded, Mandrel Bent, UK Made

Turn your F56 hot hatch into a real event every time you drive. This UK-made 3 inch stainless steel rear system delivers a deeper, more purposeful soundtrack, sharper throttle response and premium build quality for the Mk3 MINI S and JCW.

Built by Cobra Sport from high grade T304 stainless steel with beautifully neat TIG welds and smooth mandrel bends for unobstructed gas flow, this rear section system replaces the middle and back box from the catalyst rearwards. The result is a freer breathing exhaust note that suits the playful character of the MINI, with proven durability for daily use and spirited weekend drives.

Why enthusiasts choose this system

• 3 inch pipework for improved flow and reduced restriction compared to many 2.75 inch alternatives
• Choice of sound:
  - Resonated includes a centre silencer for a refined, sporty tone on the motorway
  - Non resonated removes the centre silencer for a louder, more aggressive, resonator delete style character
• Tailpipe options with 3.5 inch tips, including ceramic coated black and carbon fibre finishes for a stealth or motorsport look
• Direct fit to the standard catalyst section, supplied with all required fittings and gaskets
• Compatible upgrades - pair with Cobra Sport sports cat or decat downpipe to create a full turbo back setup
• UK engineered in Sheffield, the heart of British steelwork, with attention to detail you can see and hear

Sound and drive feel

Months of development went into creating a soundtrack that is engaging when you want it and civil when you need it. Expect a deeper idle, a crisp, sporty midrange and amplified crackles and pops in sport mode. On-track testing with the non resonated rear system recorded 86.4 dB at 4,000 rpm, around 7 percent up on stock for that addictive hot hatch character without being boomy inside.

Construction that lasts

T304 stainless throughout, precision mandrel-bent tubing and expert TIG welding deliver strength, corrosion resistance and a flawless finish. This is not a back street job - it is a premium, free-flowing system designed to shrug off years of British weather.

Fitment and compatibility

• Designed for the F56 generation Mk3 MINI S and JCW hatch
• Fits from the catalytic converter rearwards, replacing centre and rear sections
• Works with the factory downpipe and with Cobra Sport sports cat or decat downpipes for stage 1 or stage 2 style builds

Real-world feedback

We run this system on our own builds at MJ Modifications and it is a customer favourite for the F56 platform. Owners praise the deeper tone, quality of the welds and the upgrade in presence without droning on long journeys, especially with the resonated option.

Professional installation

Want it fitted properly first time We can install this system for you at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and availability.

Media

Exhaust Sound Example - Mini Cooper S F56 Non Resonated Cat Back Exhaust

VLOG - Mini Cooper S F56 Non Resonated Cat Back Exhaust

Search-friendly terms

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