Mini (Mk2) Cooper S / JCW (R59) Roadster Cat Back Performance Exhaust

Upgrade your Mini R59 Roadster soundtrack and flow

Bolt on a high quality stainless system for the Mini Mk2 Roadster and unlock a richer tone, quicker spool and a sharper drive. This UK made Cobra Sport rear section upgrade runs from the catalyst back, using 63.5 mm mandrel bent tubing with precision TIG welded construction and beautifully finished twin 88.9 mm tips. It looks right, fits right and sounds fantastic.

Made for Mini Cooper S and JCW Roadster owners who want more

Whether you drive a turbocharged 1.6 Cooper S or the punchier JCW, this catback system delivers a deeper note without drone on the motorway, plus a noticeable weight saving over the heavy factory assembly. Our own installs and customer feedback have been superb: crisper throttle response, a purposeful rasp when pressing on and refined manners when cruising.

Choose your sound

• Resonated: includes a centre silencer for a subtle, sporty tone ideal for daily use.
• Non-resonated: deletes the centre silencer for a louder, more aggressive soundtrack.

Why this stainless system is a winner

• 63.5 mm pipework for improved gas flow and performance potential.
• TIG welded 304 grade stainless throughout for durability and long term corrosion resistance.
• Mandrel bends maintain bore size for consistent flow.
• Twin 3.5 inch polished tailpipes sit perfectly within the rear valance.
• Significant weight reduction vs the OE backbox and centre section, with Cobra Sport quoting around a 22 percent saving on the Mini platform.
• Engineered for liveable sound levels, with testing showing only a minimal increase at idle compared to stock while offering a much more engaging note under load.
• Supplied with all required gaskets and fittings for a straightforward install.
• Backed by Cobra Sport’s lifetime warranty for complete peace of mind.

Fitment

Designed to suit Mini Mk2 Roadster R59 models:

• Mini Cooper S Roadster R59 1.6T
• Mini John Cooper Works Roadster R59 1.6T

Configuration: catback system replacing the centre section and rear silencer.

In the box

• Stainless catback assembly with centre section and rear section
• Polished twin 88.9 mm outlets
• Fitting kit and gaskets

Professional installation

We recommend fitting at MJ Modifications in Warwickshire. We have installed this system on numerous customer cars with excellent results. Request a fitting quote: info@mjmodifications.co.uk.

Notes

• Images showing the system on the vehicle depict the resonated version.
• Please verify compatibility with your specific R59 before ordering.

Search friendly details

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Watch and listen

Non-resonated catback on Mini Cooper S:

Resonated catback on Mini Cooper S:

Non-resonated catback sound sample: