Custom Engine 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.
Update: Very limited availability for custom wiring harness commissions in 2025. Send us a message to check availability.
Most builders don’t like wiring - we love it! A custom harness just transforms an engine bay, and brings a 90’s car straight into the future with the benefits of a modern ECU.
Need a harness? We got you.
Motorsport grade TXL or Tefzel wire.
Approx 30-50% lighter than OEM
High temp sheathing
Brand new connectors & contacts
Connector Labels (if requested)
Detailed pinout & wiring diagrams included.
Custom measurement and install available.
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!
Pricing is for measurement and supply of harness only. Installation, ecu configuration and base map tuning is charged additional on a case by case basis.
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.
Update: Very limited availability for custom wiring harness commissions in 2025. Send us a message to check availability.
Most builders don’t like wiring - we love it! A custom harness just transforms an engine bay, and brings a 90’s car straight into the future with the benefits of a modern ECU.
Need a harness? We got you.
Motorsport grade TXL or Tefzel wire.
Approx 30-50% lighter than OEM
High temp sheathing
Brand new connectors & contacts
Connector Labels (if requested)
Detailed pinout & wiring diagrams included.
Custom measurement and install available.
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!
Pricing is for measurement and supply of harness only. Installation, ecu configuration and base map tuning is charged additional on a case by case basis.
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.
Update: Very limited availability for custom wiring harness commissions in 2025. Send us a message to check availability.
Most builders don’t like wiring - we love it! A custom harness just transforms an engine bay, and brings a 90’s car straight into the future with the benefits of a modern ECU.
Need a harness? We got you.
Motorsport grade TXL or Tefzel wire.
Approx 30-50% lighter than OEM
High temp sheathing
Brand new connectors & contacts
Connector Labels (if requested)
Detailed pinout & wiring diagrams included.
Custom measurement and install available.
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!
Pricing is for measurement and supply of harness only. Installation, ecu configuration and base map tuning is charged additional on a case by case basis.
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.