Race Spec has established a trusted reputation of producing wiring harnesses to the highest standards and quality for a wide range of applications and industries.

What initially began as private label fulfillment services has transitioned into our production clients proudly advertising that Race Spec is responsible for their wiring harness needs. In the event where anonymity is required we are well versed with confidentiality agreements, protecting your IP, and building under numerous ND/NC agreement types.

Ranging from prototyping through 250pc+ build to print runs, we have the ability to exceed your expectations and fulfillment requirements.

Race Spec is registered with SAM and our CAGE code is 8MQD5. 

  • Consultation > Initial Design > Proof of Concept
  • Prototyping
  • Build To Print
  • <.250" Build Tolerance
  • Blanket Orders with fulfillment schedules

  • Cirris 1100H+ Hipot Tester
  • Schleuniger Unistrip 2300 Automated Wire Strippers
  • Schleuniger UniCrimp 100 Press (Custom Applicators available per project and volume requirements)
  • Schleuniger PF1100 Prefeeder
  • Schleuniger EC3200 Automated Cutter
  • DMC Pneumatic Crimp Tools
  • Rennsteig Hand Tools

  • T1 Race Development

    "At T1 we are extremely particular with every single product or project we are involved with. Having our name on something means we believe the end product is of the highest caliber, and thus we do not accept anything but the best in terms of quality and workmanship. Race Spec has been our supplier for custom harnesses for years, and will continue to be for years to come. The knowledge, attention to detail, pricing, and delivery time are all impeccable. Race Spec has set the bar for what we feel wire harnesses should be, accompanied by incredible professionalism, and we could not ask for more."

  • M-Engineering

    "We (M-Engineering) have known about Race Spec for sometime and knew the caliber of work that they strive for so they were our first and only choice when we had a bit of a bespoke project that we needed done. Communication with Joel was fantastic through the whole process. They also stuck to a verbal agreement we had which is really amazing to still see in this industry. We hold these guys in the highest regard and will be doing all wiring work with them going forward. When it comes to wiring projects I would be hard pressed to look at anyone else other than Race Spec."
  • Anonymous

    "Race Spec was extremely easy to deal with in regards to ordering and completing the desired components. Provided specifications were followed perfectly and the end result was a high quality and great looking harness. A print-out of QC/function test results was provided along with the components which is important to a quality focused company like ours. Race Spec will remain our go to for quality wiring solutions."

  • DSX Tuning

    "The quality is the most obvious thing about the wiring harnesses. Functionally and aesthetically, they're perfect. Beyond that, the communication and delivery commitment is far above the average level you find in this industry."