Welcome to
OEM Performance.
An independent garage in Great Staughton near St Neots, offering servicing, diagnostics, mechanical repairs, wet belt replacement and performance upgrades for cars and vans.
Garage services
DiagnosticsDiagnostic testing identifies the cause of a fault before parts are replaced.
- Diagnostic fault-code scanning and live-data analysis
- Engine management and running faults
- Electrical fault finding and battery / charging checks
- Sensor, ignition and fuel-system investigation
Service and repairServicing follows the vehicle’s schedule and oil specification.
- Engine oil, filters and scheduled servicing
- Brake discs, pads and brake-fluid replacement
- Suspension, steering and cooling-system repairs
- Timing belts, timing chains and engine repairs
- Gearbox servicing and replacement
Wet belt specialistA wet belt runs in engine oil.
- Ford 2.0 EcoBlue — Transit and Ranger
- Ford 1.0 EcoBoost — applicable wet belt engines
- Stellantis / PSA 1.2 PureTech EB2 — belt-driven variants
- Honda Civic 1.0 VTEC Turbo
Performance and upgradesBrake, suspension, exhaust, intake and cooling upgrades are selected for the vehicle and how it is used.
- Performance brake discs and pads
- Suspension and handling upgrades
- Vehicle-specific exhaust upgrades
- Intake and cooling upgrades
- Vehicle-specific performance planning
MappingECU mapping is planned around the vehicle’s condition, existing modifications and intended use.
- Vehicle and ECU compatibility checks
- Review of existing faults and modifications
- Vehicle-specific ECU mapping requirements
- Agreed scope and checks after mapping

Diagnostics and maintenance for cars and vans.
Engine repairs,
suspension and brakes
Major mechanical work starts with inspection. The findings determine which parts need replacing and whether further testing or dismantling is required.

Engine rebuilds and timing
Engine-condition assessment, rebuilds, timing belts and chains, oil leaks and cooling-system faults. The extent of the work is confirmed after diagnosis.
Suspension and steering
Inspection and replacement of worn dampers, springs, bushes, arms, steering joints and wheel bearings. Tyre wear and reported noises help guide the checks.
Brake discs, pads and hydraulics
Disc and pad condition, caliper operation, brake hoses and fluid. Replacement parts are selected for the vehicle and checked as a complete system.
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