{"product_id":"ignition-coil-iridium-spark-plugs-for-infiniti-g35-2003-2006-3-5l","title":"Ignition Coil \u0026 Iridium Spark Plugs for Infiniti G35 (2003-2006) 3.5L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil \u0026amp; Iridium Spark Plugs for 2003-2006 Infiniti G35\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eRestores proper spark energy and resolves hesitation by replacing thermally degraded OE ignition components on the VQ35DE platform.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock G35 Ignition Shortcomings\u003c\/h3\u003e\n  \u003cp\u003eThe factory VQ35DE ignition coils in the V35 chassis are highly susceptible to internal epoxy degradation and thermal breakdown caused by extreme heat soak from the 3.5L V6 aluminum block. Over thousands of heat cycles, the OEM coil casings develop microscopic cracks, allowing moisture intrusion and secondary voltage leaks to the cylinder head. This mechanical fatigue manifests as erratic idling, noticeable hesitation under heavy engine load, and common P0300-series cylinder misfire codes. Additionally, degraded standard spark plugs increase the electrical resistance the weakened coils must overcome, severely compounding the inefficient combustion cycle and negatively affecting fuel trims.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eThis ignition overhaul rectifies VQ35DE spark decay by combining upgraded heavy-duty ignition coils with highly conductive iridium spark plugs. The coils utilize a high-temperature epoxy resin and dense copper primary and secondary windings to increase thermal shock resistance and guarantee consistent voltage transfer under extreme engine bay temperatures. Paired with iridium spark plugs—featuring an ultra-fine center electrode and an exceptionally high melting point of over 4,000°F—this hardware lowers the required firing voltage while delivering a more concentrated spark kernel. The mechanical result is optimized flame propagation, stabilized idle RPMs, and restored fuel efficiency without the premature gap erosion typical of factory materials.\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;\"\u003e2003-2006 Infiniti G35\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;\"\u003eVQ35DE \/ V35\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;\"\u003e260-298 hp \/ 260-270 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;\"\u003e22448-8J115, UF349\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e2003 Infiniti G35 3.5L V6 VQ35DE\u003c\/li\u003e\n    \u003cli\u003e2004 Infiniti G35 3.5L V6 VQ35DE\u003c\/li\u003e\n    \u003cli\u003e2005 Infiniti G35 3.5L V6 VQ35DE\u003c\/li\u003e\n    \u003cli\u003e2006 Infiniti G35 3.5L V6 VQ35DE\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Infiniti Engineering Caliber\u003c\/h3\u003e\n  \u003cp\u003eThe JDM standard dictates exact engineering tolerances and consistent power delivery throughout the entire RPM band. Replacing fatigued factory components with precision-engineered ignition hardware ensures your V35 maintains the reliable throttle response, smooth acceleration, and stable idle required from the high-revving VQ platform.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50255529378040,"sku":"DS-E7K1NPWN1","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-for-infiniti-g35-2003-2006-3-5l-1.jpg?v=1787984096","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-iridium-spark-plugs-for-infiniti-g35-2003-2006-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}