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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
4.1 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 1
Go with tough rubber toys---you'll be ALOT happier!!!
This item isn't worth the thread used to make it. Only took my little puppy approx. 45 min. to gnaw the squeaker out!! The edging "tape" didn't last 1/2 that long. NOT good choice for tough teethers!!! I hand sewed damages---no help. For good toys---go with the KONG-type strength---REALLY TOUGH!!!
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Reviewed in the United States on May 16, 2026
★★★★★ 2
Disappointing
Not for aggressive chewers. It looked good but after a couple of hours the binding around the edge started coming undone and my terror twins have destroyed it
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Aggressive Chewer Approved!
I’ve tried so many dog toys that claim to be “tough,” and most of them don’t last more than a day in my house… but this one is the real deal.
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Reviewed in the United States on January 19, 2026
★★★★★ 4
Favorite toy but my dog chews too aggressively .
I took away 1 star because my dog tore a hole into this toy the 1st day, but even though that happened I am still happy with this toy. It was a great price and my dog LOVES this toy. He throws it all around and shakes it, "Octy" keeps him entertained for a good 45 mins , so I am still happy with the purchase .
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Reviewed in the United States on February 9, 2026
★★★★★ 1
Dangerous for dogs!
Not only is this not a tough toy since my puppy tore it apart in less than 2 months, she also swallowed the long red strings and filling. I had to pull it out of her back end. Any dog owner knows this is not safe, especially for my 5-month-old puppy. This is in no way a tough toy, and can be very dangerous for dogs.
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Reviewed in the United States on March 9, 2026