{"product_id":"msd-6425-digital-6al-ignition-control-red-built-in-rev-limiter-4-6-8-cyl-high-output","title":"MSD 6425 Digital 6AL Ignition Control — Red, Built-In Rev Limiter, 4\/6\/8-Cyl High-Output","description":"\u003cp\u003e\u003cstrong\u003eMSD 6425 Digital 6AL Ignition Control is a compact, high-output ignition module with built-in rev limiting that delivers stronger, more consistent spark energy for 4-, 6- or 8-cylinder engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis red MSD 6425 merges efficient electronics with user-friendly rev control so you get both improved ignition performance and precise RPM limiting in one sealed package. Its sealed, locked connector keeps wiring protected from the elements while the internal circuitry reduces current draw but increases spark energy, giving reliable starts and cleaner combustion across a range of applications from street cars to light racing use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the MSD 6425 improve ignition performance?\u003c\/h3\u003e\n\u003cp\u003eThe 6425 raises available spark energy and provides a steady, high-voltage output to ensure consistent firing under load. Its design produces 530 volts and up to 135 mJ of spark energy, delivering a stronger ignition event than many stock systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-voltage output: 530 volts for better spark penetration\u003c\/li\u003e\n  \u003cli\u003eEnergy rating: 135 mJ for stronger ignition\u003c\/li\u003e\n  \u003cli\u003eEfficient components reduce electrical draw while maintaining performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it control engine RPM and how precise is the rev limit?\u003c\/h3\u003e\n\u003cp\u003eThe MSD 6425 includes built-in rev control with two rotary dials that let you set a limit in 100 RPM increments, making adjustments straightforward and repeatable. This lets you protect engines or enforce RPM envelopes without adding a separate controller.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual rotary dials for accurate RPM settings\u003c\/li\u003e\n  \u003cli\u003eAdjustable in 100 RPM steps for fine tuning\u003c\/li\u003e\n  \u003cli\u003eWorks reliably across the control range without extra modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my engine and electrical system?\u003c\/h3\u003e\n\u003cp\u003eThis unit is compatible with 4-, 6- and 8-cylinder engines and operates from typical automotive voltages, accepting 12–15 volts with a 7-volt start specification. Its current draw is specified at 0.7 amp per 1,000 RPM, which helps you estimate charging and wiring needs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible: 4, 6, or 8 cylinders\u003c\/li\u003e\n  \u003cli\u003eOperating voltage: 12–15 V, 7 V start capability\u003c\/li\u003e\n  \u003cli\u003eCurrent requirement: 0.7 A per 1,000 RPM for charging planning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and durability features does the 6425 include?\u003c\/h3\u003e\n\u003cp\u003eThe device routes all wires through a single locked, sealed connector to protect connections from moisture and vibration. A built-in LED gives a quick visual check of system status, while robust internal components minimize heat and maximize reliability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLocked, sealed connector keeps wiring secure and weatherproof\u003c\/li\u003e\n  \u003cli\u003eIntegrated LED for simple system diagnostics\u003c\/li\u003e\n  \u003cli\u003eCompact, rugged housing designed for engine-bay conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The MSD 6425 Digital 6AL is for enthusiasts and tuners who want a compact, high-energy ignition controller with integrated rev limiting for street, strip, or hobby motors. It suits owners upgrading from stock ignitions, builders of mild performance engines, and anyone needing a reliable, sealed module that supports 4–8 cylinder setups without extra components.\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 MSD 6425 compatible with 6-cylinder engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 6425 supports 4-, 6- and 8-cylinder engines and operates on 12–15 volts with a 7-volt start.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I set the rev limiter on this unit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use the two onboard rotary dials to set the rev limit in 100 RPM increments for accurate adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MSD","offers":[{"title":"Default Title","offer_id":48080165994654,"sku":"B004EGZU42","price":485.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/msd-6425-front-view-red.jpg?v=1785779469","url":"https:\/\/northtrailauto.ca\/products\/msd-6425-digital-6al-ignition-control-red-built-in-rev-limiter-4-6-8-cyl-high-output","provider":"North Trail Auto","version":"1.0","type":"link"}