818 Wiring Harness

[gkeller]

I have been looking for a wiring harness for my 818S. It has a 2.5L Subaru motor (2004). It seems like no-one wants to make a harness for this car. I would love to find a complete harness. Thank you for any help

[Bob_n_Cincy]

I have been looking for a wiring harness for my 818S. It has a 2.5L Subaru motor (2004). It seems like no-one wants to make a harness for this car. I would love to find a complete harness. Thank you for any help

Is it an sti or forester xt with a turbo and drive by wire throttle?

[idf]

Have you tried Wayne at Very Cool Parts? IWire stopped making them, but worth trying to talk them into one more.

[gkeller]

It is a non turbo, not an STI and not a WPX

[erachner]

Anybody have any luck in this department? I'm making progress on my build and beginning to feel like I'd rather not get mired down in the wiring harness if there are any of them still out there to be had...

[Ottw]

I wire will make you one about $1,600, just call them, but go after market ECU (Haltech) and make your own. It really is easier than you think and you’ll have a much better solution. Basically just follow the wire diagram from Haltech. You can control everything, engine, turn signals, lights everything. And if you have a problem just call they always answer! And they log into your system if needed and work through your system until it’s fixed. Go with the 2500 to make sure you have enough room to wire your car completely. It’ll cost you $500 more but your car will run properly when done.

[Shawn818c]

I wire will make you one about $1,600, just call them, but go after market ECU (Haltech) and make your own. It really is easier than you think and you’ll have a much better solution. Basically just follow the wire diagram from Haltech. You can control everything, engine, turn signals, lights everything. And if you have a problem just call they always answer! And they log into your system if needed and work through your system until it’s fixed. Go with the 2500 to make sure you have enough room to wire your car completely. It’ll cost you $500 more but your car will run properly when done.

Do you recommend the 2500 or 2500 t ECU?

[Ajzride]

If I had it to do over again I would have gone with an aftermarket ECU and used their wires to make an engine harness, and a Coach-1 system for the rest of the car. I have the coach-1 body harness and love it.

https://coachcontrols.com/index.php?...roducts_id=123

[Hojo]

If I had it to do over again I would have gone with an aftermarket ECU and used their wires to make an engine harness, and a Coach-1 system for the rest of the car. I have the coach-1 body harness and love it.

https://coachcontrols.com/index.php?...roducts_id=123

I would check with someone about using an aftermarket ECU. Massachusetts state computer did not recognize my JDM ECU and I had to swap it out for a stock USDM for my initial approval.

[Ajzride]

I would check with someone about using an aftermarket ECU. Massachusetts state computer did not recognize my JDM ECU and I had to swap it out for a stock USDM for my initial approval.

Good point. Depending on which state you live in an aftermarket ECU might be a no-go.