Wheels & Tyres
✓Up to 17″ diameter wheels permitted. Tyre specification to be advised.
Engine & ECU
✓ECU must run OEM program and map to original manufacturer specification. Replacement with an alternative RSA approved ECU unit requires permission granted at scrutineer’s discretion.
✓Supercharger pulley to be OEM or a 15-degree maximum alternative — will be marked for scrutineering assessment.
✓R56 turbocharged cars must retain OEM standard boost settings.
✓Race fuel can be super unleaded up to a maximum of 97 octane.
✓Air induction modifications to the OEM design are not permitted. The only permitted alternative induction system is supplied by Ramair.
Transmission & Suspension
✓A Quaife ATB limited slip differential is permitted. Montgomery Motorsport recommended as supplier.
✓Poly bushes are permitted in suspension components.
✓A front suspension strut brace and strut top reinforcement plates are permitted.
✓Shock absorbers must be to OEM specification, in line with RSA Mini Cup regulations. This regulation may be reviewed.
Brakes
✓OEM brake discs must be used. Brake pads: Ferodo DS2500 or a similar alternative is permitted.
✓Handbrake activation must remain as per OEM. Modification to the handbrake lever is permitted, subject to review.
Exhaust
✓The exhaust system from the end of the OEM exhaust manifold is free, but must comply with environmental and RSA noise regulations.
Interior & Body
✓Additional dash-mounted monitoring gauges are permitted.
✓Polypropylene driver and passenger floor pans are permitted.
✓Body glass must remain as OEM.
✓Roll cages must be FIM homologated. Recommended: Safety Devices Mini Cup cage, available from Irish distributor Montgomery Motorsport.
✓Cars with an original sunroof must have it removed and replaced with a metal panel reflecting the original OEM specification.
Note: These are supplementary regulations. All other requirements follow the RSA Mini Cup Regulations unless specifically overridden above.