{"product_id":"sxqddz-can-bus-y-splitter-cable-ma558-465-for-holley-efi-shielded-4-wire-plug-and-play","title":"Sxqddz CAN Bus Y-Splitter Cable MA558-465 for Holley EFI — Shielded 4-Wire, Plug-and-Play","description":"\u003cp\u003e\u003cstrong\u003eThe Sxqddz CAN Bus Y-Splitter Cable MA558-465 lets you connect two CAN devices—such as a handheld and laptop—simultaneously to Holley EFI systems without modifying the main harness.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you run Holley EFI platforms like Sniper, Terminator X, or Dominator and need to attach multiple CAN-enabled tools at once, this compact shielded 4-wire Y-splitter provides a simple, plug-and-play solution. Built to match OE-style connections and labeled with part numbers MA558-465, 558-465, TERMX-Y6 and TERMX-Y-6, the cable is designed to be durable, flexible, and easy to stow when not in use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this Y-splitter work with Holley EFI systems?\u003c\/h3\u003e\n\u003cp\u003eThe harness splits a single CAN Bus line into two branches so you can plug in a handheld controller and another CAN device concurrently. It retains the shielded 4-wire wiring required for reliable CAN communication and uses compatible connectors to mate with Holley harnesses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect fit for Sniper, Terminator X, and Dominator ECUs\u003c\/li\u003e\n  \u003cli\u003eShielding reduces electrical interference on the CAN network\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play—no splicing or soldering required\u003c\/li\u003e\n  \u003cli\u003eCompact, flexible cable for neat routing and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this affect ECU firmware updates or diagnostics?\u003c\/h3\u003e\n\u003cp\u003eFor firmware flashing or troubleshooting, the manufacturer recommends connecting the updating device directly to the main harness and temporarily removing the splitter. This ensures a single, direct CAN link for cleaner communication during sensitive operations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove splitter when flashing ECU firmware\u003c\/li\u003e\n  \u003cli\u003eUse direct main-harness connection for diagnostic tools if instructed\u003c\/li\u003e\n  \u003cli\u003eSplitter is ideal for simultaneous monitoring and handheld control during normal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the build and quality features of the cable?\u003c\/h3\u003e\n\u003cp\u003eThe Sxqddz MA558-465 is manufactured as a shielded four-conductor assembly with robust connectors, designed for repeated plugging and in-vehicle environments. The cable's small footprint and flexible jacket make routing beneath dashboards or in engine bays straightforward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShielded 4-wire construction for stable CAN signals\u003c\/li\u003e\n  \u003cli\u003eDurable connector housings rated for repeated cycles\u003c\/li\u003e\n  \u003cli\u003eCompact form factor that folds and stores easily\u003c\/li\u003e\n  \u003cli\u003e100% new, labeled with interchangeable part numbers for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I ensure I order the correct part and install it properly?\u003c\/h3\u003e\n\u003cp\u003eConfirm your vehicle or ECU model (Holley Sniper, Terminator X, or Dominator) and match the part number MA558-465 or listed alternates before purchasing. Installation is plug-and-play: insert the splitter inline with the CAN connector and plug the two devices into the Y-branches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck compatibility: MA558-465, 558-465, TERMX-Y6, TERMX-Y-6\u003c\/li\u003e\n  \u003cli\u003ePlug splitter into main CAN junction; connect devices to branches\u003c\/li\u003e\n  \u003cli\u003eRemove splitter for firmware updates when instructed\u003c\/li\u003e\n  \u003cli\u003eContact seller support if you’re unsure about fit or function\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Technicians, tuners, and vehicle owners who use Holley EFI platforms and need a reliable way to connect a handheld device plus a laptop or other CAN accessory at the same time will find the Sxqddz MA558-465 useful. It’s geared toward users who want a durable, no-fuss, plug-and-play CAN extension harness that preserves signal integrity while offering tidy installation and easy storage.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the MA558-465 plug-and-play with Holley ECUs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The MA558-465 is a plug-and-play CAN Y-splitter compatible with Holley Sniper, Terminator X, and Dominator systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to remove the splitter for ECU firmware updates?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. For firmware flashing, plug the updating device directly into the main harness and remove the splitter to ensure a direct connection.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sxqddz","offers":[{"title":"Default Title","offer_id":48084467384478,"sku":"B0B1XVVJBZ","price":30.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sxqddz-ma558-465-front-connector.jpg?v=1785856381","url":"https:\/\/northtrailauto.ca\/products\/sxqddz-can-bus-y-splitter-cable-ma558-465-for-holley-efi-shielded-4-wire-plug-and-play","provider":"North Trail Auto","version":"1.0","type":"link"}