Mini (Mk3) Clubman Cooper S (F54 LCI) Facelift Sports Cat / De-Cat Downpipe Performance Exhaust

Unlock serious flow and turbo sound on your Mini Clubman F54 LCI Cooper S. This Cobra Sport turbo front pipe is the go-to upgrade for owners who want sharper throttle response, stronger mid‑range pull and a deeper, more purposeful note without compromising fitment. Designed for the facelift Mk3 Clubman Cooper S, it replaces the restrictive factory catalyst with a choice of high-flow options for maximum performance gains.

Why upgrade

• 3 inch 76.2 mm mandrel-bent pipework for reduced back pressure and improved turbo efficiency
• Choice of cores to match your build: 200-cell high-flow catalyst or catless race spec
• Direct fit from turbocharger outlet to the front section of the OE system
• Built by Cobra Sport and backed by the manufacturer for quality and reliability

Choose your spec

• 200-cell high-flow catalyst 4.5 inch 114.3 mm body: optimised flow while aiding emissions control compared to stock. Ideal for fast-road cars seeking a freer-revving feel and a richer exhaust tone.
• Catless race option: straight-through internal design for maximum gas velocity and the most aggressive soundtrack. For closed-course and track builds where ultimate response is the priority.

Fitment and details

• Vehicle: Mini Clubman Mk3 F54 LCI Cooper S facelift
• Configuration: connects from the turbo outlet to the OEM front section, replacing the factory catalytic converter
• Pipe diameter: 3 inch 76.2 mm
• Catalyst option: 200-cell, 4.5 inch 114.3 mm body
• Supplied with all required fittings and gaskets, excluding the turbocharger gasket

Real-world results

We run this setup on customer cars and it delivers exactly what Mini enthusiasts want: faster spool, a stronger surge through the revs and that addictive turbo whistle with a deeper exhaust character. Our customers love the transformation and the quality finish.

Installation and support

For a hassle-free install, we recommend professional fitting at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quotation and booking. We can supply and fit, or fit only if you already have the part.

Usage guidance

• The catless version is intended for motorsport and off-road use only.
• The 200-cell catalyst option replaces an original emissions device and is not type approved. It may not meet current road-use emissions rules in your region. Always check local regulations before purchase and installation.

Media

Sports Catalyst vs Catless: what’s right for your build

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