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 harness.

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!

Why choose a Custom Engine Harness, and not an off the shelf option?

Every car is unique, and with that comes a unique set of requirements to make the perfect harness. There’s rarely a one-size-fits-all option for most cars we choose to build a harness for. Say for example, you have a stock SR20, in a stock 180sx, with a stock ECU. Even with all that - chances are you want a wideband. Maybe your speedo’s broken and you want a GPS speed unit. Extra sensors? Option to swap ECU’s down the road… The answer to all those problems is a custom harness.

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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 harness.

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!

Why choose a Custom Engine Harness, and not an off the shelf option?

Every car is unique, and with that comes a unique set of requirements to make the perfect harness. There’s rarely a one-size-fits-all option for most cars we choose to build a harness for. Say for example, you have a stock SR20, in a stock 180sx, with a stock ECU. Even with all that - chances are you want a wideband. Maybe your speedo’s broken and you want a GPS speed unit. Extra sensors? Option to swap ECU’s down the road… The answer to all those problems is a custom harness.

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 harness.

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!

Why choose a Custom Engine Harness, and not an off the shelf option?

Every car is unique, and with that comes a unique set of requirements to make the perfect harness. There’s rarely a one-size-fits-all option for most cars we choose to build a harness for. Say for example, you have a stock SR20, in a stock 180sx, with a stock ECU. Even with all that - chances are you want a wideband. Maybe your speedo’s broken and you want a GPS speed unit. Extra sensors? Option to swap ECU’s down the road… The answer to all those problems is a custom harness.