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Hybrid Racing K-Swap Conversion Harness for (88-91 Civic/CRX DX Std)

List Price:
Your Price:
$295.00 (You save $4.99)
Calculated at checkout

Product Description

• 88-91 DX Std Civic/CRX
• CORE required
• Brand new connectors and pins sourced from the same company Honda uses.
• Free phone and email tech support.
• 1000's of customers can't be wrong.

I see that a core is required for your EF harness, What do I need to send you?

Since the EF chassis is so old we are unable to source 2 connectors from the OEM supplier. In order for us to provide you with an engine harness we need your stock EF engine harness.

Please ship us your engine harness to the address located HERE.

Make sure to include a copy of your online order and your contact information.

What makes Hybrid Racing's Harness the best on the market?

Hybrid Racing completed their first K-swap over five years ago and pioneered a lot of the products that you currently see on K swapped vehicles. One of those products is the conversion harness. This harness interfaces with the factory dash harness, your OEM K series engine harness and your K series ECU to greatly simplify the swap wiring.

What's new about the Version 3 Hybrid Racing Harnress?

The new Hybrid Racing Conversion harness incorporates updated wiring to make for an even easier install, updated install guide that includes more pictures and less text and the integration of the oxygen sensorconnector making it super easy to install. No more fumbling with your stock O2 sensor connector and cutting and connecting etc.

What type of connectors and pins do you use?

When we construct a Hybrid Racing harness we utilize brand new connectors and pins sourced from the same company that Honda utilizes for their connectors. 

These connectors are ordered in bulk from Japan and ensure that your getting all new parts. In addition, all new connectors decrease the chance for errors in the harness as we do not solder any of the joints. The Hybrid Racing Conversion Harness allows for full functionality of the factory gauge cluster and comes with full replacement warranty.

What if I have questions or problems?

To ensure a trouble free install all of the wires are labeled and neatly packaged. The most valuable thing you get when you purchase a Hybrid Racing harness is full tech support. This tech support extends beyond your harness and includes help with anything associate with your swap. If you have any problems at all with the swap just give us a call and a tech will get you the information you need. It’s like having a buddy down the street who has already done hundreds of K swaps!

We have 3 lines dedicated to tech questions ensuring that your questions are answered quickly. 

There is a reason why we have sold more harnesses than any other MFG. Here are a few examples of what makes a Hybrid Racing product a Hybrid Racing product. Don't take our word for it check out these testimonials CLICK HERE FOR MORE TESTIMONIALS

I decided to go with Hybrid-Racing harness. The thing that swayed my decision was the fact that customer service is top notch, and they’re a great bunch of people to deal with…. Blue92Da


I am so happy with you and your company. You are really good to fix our car over phone, about 10 states away! You and Hybrid exceeded our expectations… Megan & Will


Hey, I bought a hybrid racing conversion harness from ya'll a while back and i was so impressed with the directions and the way the product was easily laid out to me I want to continue doing business with ya'll. (Makes me wish i got your mounts too.) -purple_dc2


Car is running sweet; I am just finishing up some cosmetic thing. Your harness and fuel line kit made things really easy thanks for all your hard work. -Steve


I received my EG harness yesterday and it looks great! Thank you, -tim meyer


I’m going with hybrid. I have yet to buy anything from them and they have treated me like I bought one of every piece of stock they have.Take that one to the bank... nskforlife


I am horrible at wiring so for my TSX in my eg, this harness was awesome. -2000Accord5sp


Laura, I just wanted to say that was the quickest shipment I have ever seen. I was completely shocked. EXCELLENT customer service! I will do business again!
Thank you!


I personally have a few reasons why I'm very slowly, but definitely purchasing my swap parts from Hybrid-Racing:
- They are industry innovators that are true racers at heart like us.
- They don't sell inferior products just to have something to sell.
- Excellent customer support.
- Have focused only on the K industry since day one.
- A local business, to me atleast.
Keep up the great work guys


You guys never cease to amaze me! :) Scourge

EF Wire Harness Instructions2.0 

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