{"product_id":"empi-8-5mm-hei-ignition-spark-plug-wire-set-with-coil-wire-part-00-9442-6","title":"EMPI 8.5mm HEI Spark Plug Wire Set with Coil Wire | VW Type 1 Air-Cooled | High-Energy Ignition (00-9442-6)","description":"\u003ch2\u003e\u003cb\u003eEMPI 8.5mm HEI Spark Plug Wire Set with Coil Wire — VW Type 1 High-Energy Ignition\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eEMPI \u003cb\u003e8.5mm HEI-style spark plug wire set\u003c\/b\u003e with matching coil wire, built for high-performance, high-energy ignition systems on \u003cb\u003eVW Type 1 air-cooled engines\u003c\/b\u003e. The thicker 8.5mm diameter, upgraded silicone insulation, and HEI-style boots make this the right wire set for engines running MSD, Crane, Pertronix Ignitor II\/III, or other high-output electronic ignition. EMPI part \u003cb\u003e#00-9442-6\u003c\/b\u003e.\u003c\/p\u003e\u003cp\u003eHigh-energy ignition produces a significantly hotter spark than stock points or basic electronic modules, and that hotter spark needs thicker, better-insulated wires to deliver energy to the plug without breakdown, crossfire, or radio interference. The 8.5mm silicone wires hold up to higher voltage, resist heat breakdown, and the HEI-style boots seal tightly around the plug and coil tower to eliminate moisture-induced misfires.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Beetle:\u003c\/b\u003e Type 1 air-cooled engines running high-output electronic ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Karmann Ghia, Type 3 \u0026amp; Thing:\u003c\/b\u003e Type 1 engine layout\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVW Bus \/ Transporter:\u003c\/b\u003e through 1971 (Type 1 engine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDune buggies, sand rails \u0026amp; kit cars:\u003c\/b\u003e with performance ignition setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e8.5mm diameter:\u003c\/b\u003e Thicker than 7mm stock for high-voltage, high-energy ignition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSilicone insulation:\u003c\/b\u003e Resists heat breakdown and prevents crossfire between adjacent cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHEI-style boots:\u003c\/b\u003e Seal tightly at the plug and coil tower to eliminate moisture-induced misfires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRF suppression:\u003c\/b\u003e Manages radio-frequency interference for cleaner operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete set:\u003c\/b\u003e Four plug wires plus the coil-to-distributor wire — everything from coil to plug.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDiameter:\u003c\/b\u003e 8.5mm (vs. 7mm stock)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStyle:\u003c\/b\u003e HEI (High Energy Ignition)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInsulation:\u003c\/b\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBoots:\u003c\/b\u003e Custom HEI-style spark plug boots, plus matching coil wire boot\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSold as:\u003c\/b\u003e Complete set (4 plug wires + coil wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart number:\u003c\/b\u003e 00-9442-6\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWill these work with stock points ignition?\u003c\/b\u003e Functionally yes, but you don't need them. Stock points ignition produces moderate spark voltage that standard 7mm Bosch wires handle perfectly; the 8.5mm HEI wires are designed for the higher voltage of performance ignition systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDo these reduce radio interference?\u003c\/b\u003e The 8.5mm HEI wires include suppression to manage RF interference. They're generally well-behaved with car audio installations, though high-output ignition systems always produce more RF noise than stock setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill they fit my Type 4 engine?\u003c\/b\u003e The Type 1 wire set has specific lengths and termination styles for the Type 1 engine layout. For Type 4 (1972+ Bus, 411, 412, Porsche 914), confirm fit before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAre the boots heat resistant?\u003c\/b\u003e Yes. Silicone HEI boots withstand the high temperatures of an air-cooled engine bay far better than rubber boots, which crack and harden over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDo they come with a coil wire?\u003c\/b\u003e Yes. The set includes the four spark plug wires plus the coil-to-distributor wire.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/ignition\"\u003eIgnition\u003c\/a\u003e, \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled\u003c\/a\u003e, \u003ca href=\"\/collections\/empi\"\u003eEMPI\u003c\/a\u003e\u003c\/p\u003e","brand":"Washburn's Metal","offers":[{"title":"Default Title","offer_id":44474567196787,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/00-9442-6-500x333.jpg?v=1774332940","url":"https:\/\/www.washburnsmetal.com\/products\/empi-8-5mm-hei-ignition-spark-plug-wire-set-with-coil-wire-part-00-9442-6","provider":"Washburn's Metal","version":"1.0","type":"link"}