VTI Harnesses — Built in Vermont, USA
Close-up of a VTI custom harness with blue sleeved branches and black automotive connectors on a white background

Honda Motorsport Wiring — Built by VTI

Production engine harnesses, chassis integration and custom motorsport wiring designed and built in Vermont.

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Plan Your Custom Wiring Project

Plan your wiring project, then submit it for review. VTI confirms scope and pricing before work is scheduled.
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VTI-Built Honda Harnesses

Shop engine harnesses and wiring systems designed, built, and tested in-house by VTI Motorsports in Vermont. For configurations outside our production catalog, start a custom harness request.

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ECU PLATFORMS WE BUILD AROUND

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Haltech engine management systems logo with yellow text on a black background
Hondata logo with binary code on a white background
MoteC logo in black and white on a white background

Partner & Vendor Products

Browse products from VTI’s partner brands.

Carrot Top Tuning

Harnesses, adapters and wiring components, including budget harness options.

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OxyTuned

ECU parts, tuning hardware and fuel-system components.

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HA Motorsports

ECU packages, conversion harnesses and supporting hardware.

Shop HA Motorsports

Need help confirming fitment, an ECU configuration, or the right wiring solution? Contact VTI before ordering and we’ll help point you to the correct system.

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