Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Rywire K-series Conversion HarnessThis adapter is made to allow the installation of a K Series engine with the 02 04 K20 engine harness. This wire harness connects your K Series engine harness to your chassis interior harness while adding the E plug and all its functions. This harness is primarily made for a K Pro or Re Flashed ECU but can be used with a stock RSX ECU provided you have bypassed the immobilizers accordingly. Please checkout the Xenocron "swap box" immobilizer delete in
This adapter is made to allow the installation of a K-Series engine with the 02-04 K20 engine harness. This wire harness connects your K-Series engine harness to your chassis interior harness while adding the E-plug and all its functions.This harness is primarily made for a K-Pro or Re-Flashed ECU but can be used with a stock RSX ECU provided you have bypassed the immobilizers accordingly.
Please checkout the Xenocron "swap box" immobilizer delete in the ECU's & EMS's category.
This harness may require the user to pull the shock tower plugs into the interior for a better fit and cleaner installation. You are also required to drill a small hole in your exhaust tunnel for the O2 Sensor plug. After a year of R&D, this method is the way our customers doing this swap said were the best & cleanest.
There will be 5 wires to be connected to your factory ECU plugs with a diagram that accurately shows which wires to connect to.
You won't use your stock engine harness with the K20, but you still continue to use your chassis Interior harness with this conversion, so don't toss it or cut it!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1516 reviews
Sort
Product Reviews
★★★★★ 5
Great Stuff
Size: 50 Feet, Style: 10 AWG
Perfect for my boat!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Measure what you buy.
Size: 50 Feet, Style: 10 AWG
I love the product made my job easy on this last pontoon I worked on but the pontoons only 20 ft long and I only pulled wires halfway and I got less than 10 ft left there was not 50 ft on that spool. But now that I've cut it used it and are using it a little hard to complain, but the use of the application for the wire is 100%, thank you very much for the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2024
★★★★★ 4
Great value, but not overly flexible.
Size: 50 Feet, Style: 10 AWG
I used this wire to run power from my car's battery to a ham radio in my trunk, and an inverter under my driver seat. This wire fit the bill perfectly. It is water, oil resistant, and tinned (to resist corrosion). One challenge I ran into was its stiffness. Despite having many fine strands, the wire doesn't flex well. You can bend it, but wants to spring back and doesn't hold its shape. This made running the wire under the hood through the firewall, and along the door moulding... a LOT of work. I scraped a lot of knuckle in the process. Overall, I'd still recommend using it for automotive projects. It is a high quality wire. Just know that it's hard to manipulate though a lot of twists and turns.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2022
★★★★★ 5
Great Marine Wire!!
Size: 50 Feet, Style: 10 AWG
Great wire Love the insulation & black & white cabling. Great improvement on my sound quality as well!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 2, 2025
★★★★★ 5
Excellent audio cable
Size: 50 Feet, Style: 10 AWG
High quality cable, it work good with my audio system, easy to install and retain sound quality. Recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2024