{"product_id":"sparkwhiz-dg508-ignition-coil-pack-iridium-spark-plug-kit-pack-of-8-high-energy-18-9-boost","title":"SPARKWHIZ DG508 Ignition Coil Pack \u0026 Iridium Spark Plug Kit — Pack of 8, High‑Energy 18.9% Boost","description":"\u003cp\u003e\u003cstrong\u003eSPARKWHIZ DG508 ignition coil pack paired with SP479 iridium spark plugs is an 8‑piece ignition replacement kit engineered to restore dependable spark energy and consistent firing across all eight cylinders.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your engine is misfiring, running rough at idle, or losing power under load, worn coils and spark plugs are common culprits. This kit combines high‑energy ignition coils with long‑life iridium plugs so you replace both components at once, simplifying maintenance and helping return the ignition system to factory‑level performance.\u003c\/p\u003e\n\n\u003ch3\u003eHow much more energy do these coils provide compared to standard OE parts?\u003c\/h3\u003e\n\u003cp\u003eThese SPARKWHIZ coils deliver roughly 18.9% more electrical energy than typical original‑equipment coils, improving spark intensity without modifying the vehicle. The increased output helps maintain combustion stability especially during high load or acceleration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e18.9% higher energy output than conventional OE coils\u003c\/li\u003e\n  \u003cli\u003eFerrite core and stainless spring for stable spark delivery\u003c\/li\u003e\n  \u003cli\u003eThick silicone boot for better insulation and reduced leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these parts durable and reliable for long‑term use?\u003c\/h3\u003e\n\u003cp\u003eThe coils use high‑grade copper windings, a ferrite core and a stainless steel return spring to resist heat and electrical degradation, while the iridium spark plugs are designed for extended electrode life. Together they offer a longer service interval compared with many economy replacements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh‑grade copper wire for improved conductivity\u003c\/li\u003e\n  \u003cli\u003eDurable silicone boots to withstand heat and oils\u003c\/li\u003e\n  \u003cli\u003eIridium plugs for slower electrode wear and consistent gaps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what should I prepare?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic engine work: remove the old coil and plug, fit the new plug into the cylinder head, then snap the coil down over the plug. The kit includes instructions; dielectric grease is recommended on boots to prevent moisture intrusion and ease future removal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFollow the included step‑by‑step installation guide\u003c\/li\u003e\n  \u003cli\u003eUse dielectric grease on coil boots for improved sealing\u003c\/li\u003e\n  \u003cli\u003eConfirm compatibility with listed part numbers before fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and part numbers does this set match?\u003c\/h3\u003e\n\u003cp\u003eThis pack is engineered to match a variety of OEM coil and plug references—use the cross‑reference list to confirm fitment for your make and model. If you see a mismatch between the kit and your old coil, contact SPARKWHIZ for support before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes cross‑references like DG508, DG491, FD503 and many OEM codes\u003c\/li\u003e\n  \u003cli\u003ePack of 8 coils and plugs for V6\/V8 engines requiring eight units\u003c\/li\u003e\n  \u003cli\u003eContact support if part differences are observed during fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This 8‑piece SPARKWHIZ ignition coil and iridium plug set is intended for DIY mechanics and professional technicians replacing all eight ignition assemblies at once—ideal for vehicles experiencing misfires, poor throttle response, or reduced engine smoothness where the listed cross‑reference numbers match. The included two‑year\/24,000‑mile warranty provides added confidence for customers wanting a comprehensive ignition refresh without sourcing individual components separately.\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: Does this kit include both coils and spark plugs for all eight cylinders?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The set contains eight ignition coils and eight SP479 iridium spark plugs, enough to service all eight cylinders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty covers the DG508 coil pack and SP479 plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: SPARKWHIZ offers a 2‑year or 24,000‑mile warranty covering defects; contact support for replacements within that period.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SPARKWHIZ","offers":[{"title":"Default Title","offer_id":55169129840983,"sku":"B09RZHG6SJ","price":95.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/sparkwhiz-front-packaging-dg508-sp479.jpg?v=1790419128","url":"https:\/\/britishgarage.co.uk\/products\/sparkwhiz-dg508-ignition-coil-pack-iridium-spark-plug-kit-pack-of-8-high-energy-18-9-boost","provider":"British Garage","version":"1.0","type":"link"}