K-Swap Conversion Harnesses & Adapters

Electrical components for Honda K20/K24 swaps, including chassis conversion harnesses, ECU adapters and supporting KPro/KTuner-compatible hardware from VTI and selected partners.

Start with your chassis, engine and ECU choice. K-swap wiring requirements vary by donor ECU and recipient chassis, so confirm all three before selecting a conversion harness.

4 products

Confirm Compatibility

Use the collection title, product application details, and vehicle or ECU options to narrow the correct wiring solution. If your chassis, engine, ECU, or swap combination is not clearly listed, contact VTI before ordering.

VTI-Built vs Partner Products

Products manufactured by VTI Motorsports are identified in their individual listings. Partner and vendor products remain available where they support a complete wiring or ECU installation.

Custom Configurations

For combinations outside the production catalog, submit a custom harness request with the chassis, engine, ECU, trigger system, injector type, and required sensors or auxiliary functions.