SCM is one of South Wales' leading vehicle remapping specialists. Conveniently located in Cross Hands Business Park, just behind Leekes and directly off the M4 corridor, we’re easily accessible for customers across the region.

As a family-run business with over 30 years of experience in the motor industry, we pride ourselves on our in-depth knowledge of a wide range of vehicles, engines, and onboard systems. This expertise allows us to deliver high-quality, reliable remapping services tailored to your car’s specific needs.

Open Monday – Friday 8.30am – 5.00pm


Engine Harness

  • G4X XtremeX ECU Terminated LS

    G4X XtremeX ECU Terminated LS

    £2,658.00     Add to basket
  • G4X StormX ECU Terminated LS

    G4X StormX ECU Terminated LS

    £2,448.00     Add to basket
  • LS Gen 3 to Gen 4 Cam Sensor Conversion Harness

    LS Gen 3 to Gen 4 Cam Sensor Conversion Harness

    £42.00     Add to basket
  • LS Gen 4 Knock Adapter Loom

    LS Gen 4 Knock Adapter Loom

    £60.00     Add to basket
  • LS Gen 3 Knock Adapter Loom

    LS Gen 3 Knock Adapter Loom

    £24.00     Add to basket
  • LS DBW Adapter Loom

    LS DBW Adapter Loom

    £48.00     Add to basket
  • LS Map Adapter Harness

    LS Map Adapter Harness

    £24.00     Add to basket
  • LS Stepper Adapter Harness

    LS Stepper Adapter Harness

    £24.00     Add to basket
  • Terminated Engine Harness GM LS GEN3/4

    Terminated Engine Harness GM LS GEN3/4

    £958.80     Add to basket