{"product_id":"rywire-b-swap-adapter-harness-88-91-ef-civic-crx","title":"Rywire B Swap Adapter Harness for 88-91 Civic\/CRX","description":"\u003cul\u003e\n\u003cli\u003eSpecific to EF Civic\/CRX B Swaps \u003c\/li\u003e\n\u003cli\u003eReduces Installation Complexity \u003c\/li\u003e\n\u003cli\u003ePlug and Play Connector Conversion \u003c\/li\u003e\n\u003cli\u003eBudget Friendly Solution \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e   \u003cli\u003e\u003ca href=\"#Included\"\u003eIncluded\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#InstallGuide\"\u003eInstall Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eRywire B-Swap Adapter Harness - 1988-1991 Honda Civic \/ CRX\u003c\/h3\u003e\n\n\u003cp\u003e\n  Dropping a B-series into your EF Civic or CRX? The motor's the fun part. The wiring is where a lot of\n  budget swaps turn into a headache, because your B16 or B18 engine harness doesn't just plug into a chassis\n  that came with a D-series from the factory. That's exactly what this Rywire adapter harness fixes. It\n  plugs in between your B-series engine harness and your car's existing wiring, so you get everything\n  talking to each other without cutting, splicing, or depinning connectors one wire at a time. It's the\n  clean, budget-friendly way to handle the electrical side of an EF B-swap and actually get the car running\n  right.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat This Harness Actually Does\u003c\/h4\u003e\n\u003cp\u003e\n  Let's be clear about what you're buying, because adapter harnesses get misunderstood. This isn't a full\n  engine harness, it's the bridge between two harnesses that weren't built to talk to each other. On one\n  side it connects to your B-series engine harness, on the other it plugs into the factory chassis wiring in\n  your EF, and it sorts out the differences in between. So instead of spending a weekend with a wiring\n  diagram, a depin tool, and a roll of tape hoping you didn't mix up a wire, you plug the adapter in and\n  move on. Rywire builds these to keep your car's electrical systems intact and working the way they\n  should, which matters when the alternative is hacking up your original harness and hoping for the best.\n\u003c\/p\u003e\n\n\u003ch4\u003ePick The Right Variant For Your Car (This Part Matters)\u003c\/h4\u003e\n\u003cp\u003e\n  Read this before you order, because this harness comes in three versions and they're not interchangeable.\n  Honda wired these chassis differently depending on the trim and the year, so you've got to match your car\n  to the right one. Here's how it breaks down:\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1988-1991 Civic\/CRX Si, HF, or EX:\u003c\/strong\u003e if you've got one of the higher trims, this single version covers all four years.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1988-1989 Civic\/CRX DX or STD:\u003c\/strong\u003e for the early base-trim cars.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1990-1991 Civic\/CRX DX or STD:\u003c\/strong\u003e for the later base-trim cars, which got slightly different wiring than the 88-89.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n  So the move is simple: figure out your trim first (Si\/HF\/EX versus DX\/STD), then your year if you're on a\n  DX or STD, and grab the matching variant. Get that right and the harness plugs in like it should. Order\n  the wrong one and it won't line up, so take the extra minute to confirm before you buy.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhy Budget Builders Reach For This\u003c\/h4\u003e\n\u003cp\u003e\n  The EF B-swap is one of the all-time great budget builds, a light little chassis with a screaming VTEC\n  motor in it, and the whole point is doing it without spending Civic-Type-R money. This harness fits right\n  into that philosophy. It saves you the labor and the guesswork of rewiring everything by hand, it keeps\n  your factory wiring usable instead of cutting it up, and it gets you to a running, reliable swap faster.\n  For most people building one of these, that's exactly the trade you want: spend a little on the right\n  adapter, save yourself a whole lot of frustration.\n\u003c\/p\u003e\n\n\u003ch4\u003eWhat You Get\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRywire B-swap adapter harness for the 1988-1991 Honda Civic and CRX (EF chassis)\u003c\/li\u003e\n  \u003cli\u003eConnects a B-series engine harness to your factory EF chassis wiring\u003c\/li\u003e\n  \u003cli\u003eNo cutting, splicing, or depinning your original harness required\u003c\/li\u003e\n  \u003cli\u003eChassis- and trim-specific design for a correct fit\u003c\/li\u003e\n  \u003cli\u003eKeeps your factory electrical systems intact\u003c\/li\u003e\n  \u003cli\u003eAvailable in three variants by trim and year (choose the one that matches your car)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFits These Cars\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1988-1991 Honda Civic\/CRX Si, HF, EX (one variant covers all years)\u003c\/li\u003e\n  \u003cli\u003e1988-1989 Honda Civic\/CRX DX, STD (early variant)\u003c\/li\u003e\n  \u003cli\u003e1990-1991 Honda Civic\/CRX DX, STD (later variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  Note: Rywire B-series swap adapter harness for the 1988-1991 Honda Civic and CRX (EF chassis). It\n  connects a B-series engine harness to the factory chassis wiring, letting you run a B-series swap without\n  cutting, splicing, or depinning your original harness. Offered in three variants to match how Honda wired\n  these cars: 1988-1991 Civic\/CRX Si\/HF\/EX (one harness for all years), 1988-1989 Civic\/CRX DX\/STD, and\n  1990-1991 Civic\/CRX DX\/STD. Confirm your trim and year and select the matching variant before ordering,\n  as the versions are not interchangeable. One adapter harness per order.\n\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cspan class=\"tag\"\u003e1988-1991 Honda Civic*\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"tag\"\u003e1988-1991 Honda CRX*\u003c\/span\u003e\u003cbr\u003e\u003cdiv\u003e\u003cspan class=\"tag\" style=\"font-style: italic;\"\u003e*Check Variants for Expanded Fitment\u003c\/span\u003e\u003c\/div\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\n\u003c\/li\u003e\n\n\n\n \n\u003cli id=\"Included\"\u003e\n(1) Adapter Harness\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\u003cli id=\"InstallGuide\"\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n","brand":"Rywire","offers":[{"title":"88-91 Civic\/CRX Si\/HF\/EX","offer_id":45842630869026,"sku":"RYW-RY-B-SUB-EF","price":85.0,"currency_code":"USD","in_stock":false},{"title":"88-89 Civic\/CRX DX\/STD","offer_id":45842630901794,"sku":"RYW-RY-SUB-88EF-DX","price":100.0,"currency_code":"USD","in_stock":false},{"title":"90-91 Civic\/CRX DX\/STD","offer_id":45842630934562,"sku":"RYW-RY-SUB-90EF-DX","price":100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/Ovl1rBJRs6fiK-BaNs5_007_Product_processed.png?v=1782337839","url":"https:\/\/www.hybrid-racing.com\/products\/rywire-b-swap-adapter-harness-88-91-ef-civic-crx","provider":"Hybrid Racing","version":"1.0","type":"link"}