Custom Engine Harness

from $1,000.00

Car Shop Tanoshi wiring looms are hand made and built to your exact specs and car - matching any engine, with any body. Our custom harnesses integrate seamlessly with your aftermarket ECU, and look beautiful in your engine bay.

Most builders don’t like wiring - we love it! Something about the way a contact goes click into a brand new OEM connector is just… mmmmmmm… Anyway. Need a harness? We got you.

  • Motorsport grade wire

  • Approx 30% lighter than OEM

  • High temp sheathing

  • Brand new connectors & contacts

  • Connector Labels (if requested)

  • Detailed pinout & wiring diagrams included.

  • Custom measurement and install.

Available for all popular aftermarket ECU’s, and selected OEM ECUs.

  • Haltech Elite, Nexus & Platinum Pro

  • Ecumaster EMU Black, Classic or Pro

  • Link G4x or Plugin

  • Emtron

  • Power FC

  • Nistune

The Process

All harnesses are hand-made, and in most cases will be measured on the car in person. (For remote harnesses, send us a message and we’ll talk about it). Once we have our measurements you can keep using the car until we’re done building the ha

From there, we build a detailed wiring diagram from scratch, incorporating your choice of sensors and particular ECU. This is the key to building a beautiful harness with minimal wiring, simple layouts and maximum reliability.

Then - we build it! Typically turnaround times on a full engine harness is around 2-3 weeks. Things like weird connectors, tricky body loom integration or a really weird combination of engine/car might take longer - but we’ll work with your timeframe to make sure you make it to the event!

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Car Shop Tanoshi wiring looms are hand made and built to your exact specs and car - matching any engine, with any body. Our custom harnesses integrate seamlessly with your aftermarket ECU, and look beautiful in your engine bay.

Most builders don’t like wiring - we love it! Something about the way a contact goes click into a brand new OEM connector is just… mmmmmmm… Anyway. Need a harness? We got you.

  • Motorsport grade wire

  • Approx 30% lighter than OEM

  • High temp sheathing

  • Brand new connectors & contacts

  • Connector Labels (if requested)

  • Detailed pinout & wiring diagrams included.

  • Custom measurement and install.

Available for all popular aftermarket ECU’s, and selected OEM ECUs.

  • Haltech Elite, Nexus & Platinum Pro

  • Ecumaster EMU Black, Classic or Pro

  • Link G4x or Plugin

  • Emtron

  • Power FC

  • Nistune

The Process

All harnesses are hand-made, and in most cases will be measured on the car in person. (For remote harnesses, send us a message and we’ll talk about it). Once we have our measurements you can keep using the car until we’re done building the ha

From there, we build a detailed wiring diagram from scratch, incorporating your choice of sensors and particular ECU. This is the key to building a beautiful harness with minimal wiring, simple layouts and maximum reliability.

Then - we build it! Typically turnaround times on a full engine harness is around 2-3 weeks. Things like weird connectors, tricky body loom integration or a really weird combination of engine/car might take longer - but we’ll work with your timeframe to make sure you make it to the event!

Car Shop Tanoshi wiring looms are hand made and built to your exact specs and car - matching any engine, with any body. Our custom harnesses integrate seamlessly with your aftermarket ECU, and look beautiful in your engine bay.

Most builders don’t like wiring - we love it! Something about the way a contact goes click into a brand new OEM connector is just… mmmmmmm… Anyway. Need a harness? We got you.

  • Motorsport grade wire

  • Approx 30% lighter than OEM

  • High temp sheathing

  • Brand new connectors & contacts

  • Connector Labels (if requested)

  • Detailed pinout & wiring diagrams included.

  • Custom measurement and install.

Available for all popular aftermarket ECU’s, and selected OEM ECUs.

  • Haltech Elite, Nexus & Platinum Pro

  • Ecumaster EMU Black, Classic or Pro

  • Link G4x or Plugin

  • Emtron

  • Power FC

  • Nistune

The Process

All harnesses are hand-made, and in most cases will be measured on the car in person. (For remote harnesses, send us a message and we’ll talk about it). Once we have our measurements you can keep using the car until we’re done building the ha

From there, we build a detailed wiring diagram from scratch, incorporating your choice of sensors and particular ECU. This is the key to building a beautiful harness with minimal wiring, simple layouts and maximum reliability.

Then - we build it! Typically turnaround times on a full engine harness is around 2-3 weeks. Things like weird connectors, tricky body loom integration or a really weird combination of engine/car might take longer - but we’ll work with your timeframe to make sure you make it to the event!