Description
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**TRACK -PREPARED & ROAD\-LEGAL 2003 MINI COOPER S R53**
**224 BHP JCW LIMITED\-SLIP DIFFERENTIAL OHLINS COILOVERS BREMBO 4\-POT BRAKES**
**£6,995 sensible offers considered**
Gedling, Nottingham
109,000 miles SP03 EEO
10 months MOT
For sale is my extensively upgraded 2003 MINI Cooper S R53\. It is presented as road\-legal and has been built for fast\-road and track use, while retaining the distinctive character of the supercharged R53\.
The car was dyno tested and tuned by Road Rage in February 2026, with a reported output of **224 bhp**\. The dyno result and tuning details can be verified by the paperwork\. The car has also received recent maintenance, preparation, machine polishing and professional valeting with an engine service.
**KEY SPECIFICATION**
**Engine & Performance**
224 bhp Mustang dyno tested and tuned by Road Rage, February 2026
Teflon\-coated supercharger blades
17% Kavs pulley
Newman Performance camshaft
Bosch 550cc injectors with upgraded wiring
RAM Air intake
Airtec radiator and intercooler
**Exhaust**
Scorpion tubular high\-flow manifold
Scorpion de\-cat
Scorpion cat\-back exhaust system
**Drivetrain**
6\-speed manual gearbox
Genuine JCW mechanical limited\-slip differential
Stud conversion
Powerflex engine mount inserts
**Suspension & Brakes**
hlins adjustable coilovers
Genuine MINI R56 Brembo 4\-pot front calipers
316 mm Brembo front discs
Upgraded rear calipers and Brembo discs
Braided brake hoses
High\-temperature brake fluid
**Wheels, Tyres & Interior**
Yokohama Advan Neova AD08R performance/track tyres
Sparco roll cage, professionally powder\-coated pink
FIA\-compliant Corbeau Sprint bucket seats
330 mm Kode steering wheel
Securely mounted fire extinguisher
GoPro mount
Lightweight interior
**RECENT MAINTENANCE & PREPARATION**
Supercharger serviced October 2025
Full engine service
Coolant flush
Brake work completed
Rear brake lines replaced
Recent MOT
Dyno tested and tuned February 2026
Machine polished and professionally valeted
The combination of the JCW LSD, hlins suspension, Brembo brakes, reported 224 bhp output and AD08R tyres makes this a focused and engaging driver's car for spirited road driving, weekend use or track days\.
This is not a standard MINI, but a substantially modified R53 built to be driven and enjoyed\. Buyers are welcome to inspect the car and verify the dyno with documents.