{"product_id":"ignition-coil-spark-plugs-for-pontiac-grand-prix-1991-2008-3-1l-3-4l-3-8l-v6","title":"Ignition Coil \u0026 Spark Plugs for Pontiac Grand Prix (1991-2008) 3.1L 3.4L 3.8L V6","description":"\u003ch2\u003eReliable Ignition Coil \u0026amp; Spark Plugs for 1991-2008 Pontiac Grand Prix\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This complete ignition coil and NGK spark plug kit restores factory spark energy to resolve misfires, rough idling, and poor fuel economy in your V6 Grand Prix.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Grand Prix Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eOver time, the factory coil packs on the GM W-Body platform (specifically the 3800 and 60-degree V6 engines) degrade due to prolonged heat cycling and engine bay vibration. The internal epoxy potting breaks down, leading to micro-cracks that allow voltage leaks and moisture intrusion. This creates weak spark arcs, directly causing cylinder misfires, hesitation under load, and unburned fuel entering the exhaust tract. Worn spark plug electrodes further exacerbate the issue by widening the spark gap, forcing the aged coils to work harder to jump the gap, ultimately burning out the primary windings.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement ignition package directly combats electrical degradation by utilizing ISO\/TS16949 certified manufacturing processes. The ignition coils feature upgraded copper wire windings and high-dielectric epoxy potting, ensuring maximum thermal resistance against the heat soak common in these transverse V6 engine bays. Paired with NGK spark plugs—renowned for their precise heat range, trivalent metal plating for anti-seize properties, and durable copper-core electrodes—the system ensures consistent, high-energy voltage delivery. This results in optimized combustion efficiency, smoother idle, reduced emissions, and restored throttle response.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1991-2008 Pontiac Grand Prix\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eGM 60-Degree \u0026amp; 3800 V6 \/ W-Body\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e140-260 hp \/ 185-280 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eC849SPEC \/ 10467067 \/ D555\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1991-2008 Pontiac Grand Prix 3.1L V6\u003c\/li\u003e\n  \u003cli\u003e1991-2008 Pontiac Grand Prix 3.4L V6\u003c\/li\u003e\n  \u003cli\u003e1991-2008 Pontiac Grand Prix 3.8L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Pontiac Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eDesigned to handle the rigors of daily driving and the robust power demands of GM's legendary V6 engines, this ignition upgrade restores the smooth, responsive muscle car character your Grand Prix was built to deliver.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50066462441720,"sku":"DS-EME8ZTYCW","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-pontiac-grand-prix-1991-2008-3-1l-3-4l-3-8l-v6-1.jpg?v=1785286500","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-spark-plugs-for-pontiac-grand-prix-1991-2008-3-1l-3-4l-3-8l-v6","provider":"Performance Chip Tuning","version":"1.0","type":"link"}