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Description
Rywire 02-04 Honda K-Series Mil-Spec Engine Harness w/OBD2 02-04 RSX K20 Sensors**Chassis Adapter Harness REQUIRED!!** Version 2 of the Rywire K series Milspec Engine HarnessThis version was created to facilitate a more universal chassis, and harness routing preference. This style can be routed more like the OEM k series engine harness through the center or more to the right on the firewall than it's Version 1 counterpart. This routing method is ideal for our (RHD) Right Hand Drive customers however NOT exclusive to RHD chassis
**Chassis Adapter Harness REQUIRED!!**Version 2 of the Rywire K-series Milspec Engine Harness
This version was created to facilitate a more universal chassis, and harness routing preference. This style can be routed more like the OEM k-series engine harness through the center or more to the right on the firewall than it's Version 1 counterpart. This routing method is ideal for our (RHD) Right Hand Drive customers however NOT exclusive to RHD chassis and does work fine on a LHD chassis.
Version 2 is also routed in a way which allows you to get around aggressive exhuast manifolds.
About the Mil-Spec K-Series Engine Harness:
This harness offers Mil-Spec Teflon coated wire. Standard wall ethylene-tetrafluoroehtylene (ETFE) insulation ( also known as Tefzel ) designed for aerospace applications where weight, dimensional tolerance, and mechanical durability are required. This wire exhibits high chemical and radiation resistance. using standard factory wire colors with a maximum heat rating of 200°C . The Teflon coated wire is loomed with The highest quality Raychem DR-25 heat shrink covering, and adhesive lined wire junctions to keep moisture out. Each connector is crimped with pneumatic heads to ensure an OEM crimp every time, then tagged with a yellow identification label for easy installation. All heavy interference circuits are protected and grounded with proper wire covering.
Our Mil-Spec harnesses are 100% quality tested pin to pin, and resistance checked to ensure no voltage fluctuations. These are the best harnesses money can buy. NO CORE is necessary when buying a harness from us!
This harness follows an OEM style configuration meaning that you'll still need a interior Computer adapter for your chassis - see the K-Series Computer Adapter link and add-option below!
Rywire also offers a Firewall mounted Mil-Spec connector that will allow easy engine removal for quick engine changes and customization. It can be added along with the Mil-spec Firewall Plate for a show-quality setup.
These harnesses are warrantied and guaranteed to work, we provide excellent installation phone support and troubleshooting to ensure this reputation for quality, however they are non-refundable.
Please ask about our custom Mil-Spec wire harness looms that are not listed online.
HARNESS CONNECTOR LIST:
- VTEC solenoid
- VTC
- Oil pressure sending unit
- Crank Sensor (CKP)(02-04 K20 style)
- Coils 1-4
- Cam (CPS) Exhaust Side
- Top Dead Center sensor (TDC) Intake Side
- Engine Coolant Temp (ECT)(02-04 K20 style)
- Knock Sensor (KS)(02-04 K20 style)
- Intake Air Temperature (IAT)
- Alternator
- Manifold Air Pressure (MAP)
- Throttle Position Sensor (TPS)
- Idle control motor
- Electronic speed sensor (VSS)
- Injectors 1-4
- h20 sending unit (for gauge cluster)
- Reverse Lights
- Reverse Lockout solenoid
- Starter signal
- Computer plugs A and B
- Power distribution cap
- Ground
- 2 Extra Wires
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
4.9 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Doesn’t leak, durable, keeps drinks cold
Color: Sparkling Sherbet, Size: 40 Ounces
Absolutely love this water bottle. I am a water bottle junkie and this one is my favorite. It doesn’t leak and the fact that I can guzzle or sip through a straw is a major plus. It is kind of heavy but it is a big thermos. The only reason I didn’t give five stars is because the bottom doesn’t fit in all cup holder. It keeps my drinks cold all day and is super easy to clean. It is very sturdy and well made. I figured after using for a while, the lid wouldn’t pop open as easy as it did when it was new, but it still does. I also love the lock feature incase the button accidentally gets pressed when I am carrying it around in my bag.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Compact, incredibly absorbent, and a travel essential.
Color: Gray, Size: 48.00" x 24.00"
The Rainleaf microfiber towel has been a fantastic addition to my gear. It’s remarkably compact and lightweight, which makes it perfect for tossing into a gym bag or packing for trips without taking up unnecessary space. Despite its size, it’s surprisingly super absorbent and dries much faster than a standard cotton towel, which is a huge plus when you're on the move. It’s well-made, feels durable, and is definitely a must-have for anyone who travels, camps, or hits the gym regularly.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Great Travel Towel !!
Color: Mint Color, Size: 72.00" x 40.00"
I travel for work. The last few years I've noticed the quality of hotel towels has gone downhill. I suspect that they are not replacing them as often to save money. So not only are hotel towels too small, they are thread bare, thin and scratchy. So I thought about bringing my own towel, but, it's not practical as they are heavy and bulky to pack, and they take a long time to dry. This Rainleaf Microfiber towel is the answer to my prayers. I bought the big one, 70 X 40. I tested it at home. It is kinda strange to dry off with it because it's different. Not bad, just different. It smooth but not soft and fuzzy like a cotton towel. BUT, it dries amazingly well. It doesn't even get that wet. It's more like patting dry then rubbing you dry, it you know what I mean. Once you get used to it, it works great. Even though is it huge at 70" X 40", it weighs less than 1 pound. Super small and great for packing. Corner pocket would be good at the beach for keeping valuables out of sight. It's my new go-to hotel towel. I may even bring it on my cruise !
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Dries quickly and very portable
Color: Violet, Size: 72.00" x 40.00"
Dries you off quickly, is light weight, and very portable. I bought this to use for the gym, where we’ve been having to shower (instead of at home) as our water heater has gone out. Until we get it replaced we’ve been having to use the shower at the gym after our workout. I wanted a towel that would also be good for taking to the pool when I lap swim. This fits the bill. It dried me super quickly (less than 1 min I was fully dry). It didn’t weigh the towel down either. I got the extra large one, and I am 5’6” and it was plenty big to wrap around me while I was walking around to get dressed. It’s super easy to tie using the corners and it will stay put on you. I really like this. I will likely buy a few more in smaller sizes to use for hair, kids, pets, etc. it’s really good for the gym, showering on the go, and the pool so you can dry faster. I plan on using the smaller ones also for taking on a run in the hot Florida summer to keep the sweat from dripping. It doesn’t seem to have an odor, and time will tell if the towel’s silver ion feature works well, but this was worth the price in my mind.
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Reviewed in the United States on February 25, 2026
★★★★★ 4
Very compact, yet absorbent
Color: Navy Blue, Size: 48.00" x 24.00"
This is a unique kind of towel that has very little volume and rolls up to a tiny size. It would be great for a camping trip, or any situation where size is important. It's also surprisingly absorbent, considering how thin it is. I use it for toweling off after taking a shower at the gym. I should also mention that it dries very quickly. The only thing I don't like about it is that it is kind of "sticky" when you're running it across your body. That takes some getting used to.
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Reviewed in the United States on March 9, 2026