K-Series FT450 Engine Harness – Street-Spec TXL – K20-K24 – C101 Integrated

Street-Spec K-Series FT450 Engine Harness

Built for real street cars.

This is our Street-Spec TXL K-Series harness designed specifically for FuelTech FT450 applications on K20 and K24 engines.

Clean layout. Proven routing. Budget-minded without sacrificing functionality.

 Designed For

• K20 / K24 engines
• FuelTech FT450 ECU
• K-swap chassis builds
• 02-04 style K-swap subharness setups
• Universal relay/fuse box configurations

 Key Features

✔ TXL automotive wire throughout
✔ Street-spec loom construction
✔ Integrated C101 connector
✔ High impedance injector configuration
✔ 02-04 K-swap subharness compatible
✔ Base FT450 startup map included
✔ Full pinout sheet included
✔ Clean routing, simplified layout

C101 Integration

This harness includes an integrated C101 connector, allowing you to:

• Connect directly to a K-swap chassis subharness
OR
• Tie into a universal relay / fuse box setup

Flexible for both traditional swap builds and standalone wiring systems.

Construction Spec

• TXL automotive primary wire

• Street-spec loom construction

• Properly crimped ECU terminals

• Clearly labeled branches

• Clean routing for simplified installation

This is not a milspec DR-25 harness — this is a durable, serviceable street harness built for performance builds.

 Injector Configuration

Designed for:

✔ High impedance injectors only

Low impedance setups are not supported in this configuration.

What’s Included

• Complete FT450 engine harness

• Integrated C101 connector

• Base startup map

• Full pinout documentation

Not Included

• Charge harness (required separately)

• Relay / fuse box

• Sensors

 Ideal For

• Budget-minded turbo builds
• Street K-swap projects
• FuelTech conversions
• Clean engine bay builds
• Reliable daily driven setups

 Important Notes

• Designed for K20 / K24 engines

• 02-04 K-swap subharness compatible

• High impedance injectors only

• Off-road / motorsport use only