{"product_id":"throttle-body-spacer-for-infiniti-fx35-2003-2006-3-5l","title":"Throttle Body Spacer for Infiniti FX35 (2003-2006) 3.5L","description":"\u003ch2\u003ePrecision Billet Throttle Body Spacer for 2003-2006 Infiniti FX35\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect-fit intake plenum extension:\u003c\/strong\u003e Lengthens the intake tract and optimizes inlet air velocity to sharpen off-idle throttle response and low-end torque on the 3.5L VQ-series V6.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock FX35 Plenum Flow Restrictions\u003c\/h3\u003e\n\u003cp\u003eThe factory VQ35DE intake manifold design on the S50 platform creates abrupt airflow transitions directly behind the throttle plate. At low-to-mid throttle angles, incoming charge air develops turbulent boundary layers and localized pressure drop at the plenum entry. This disrupted air column delays manifold pressure stabilization, causing sluggish throttle response and a noticeable flat spot in torque output below 3,500 RPM.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eCNC-machined from aircraft-grade billet aluminum, this spacer increases plenum volume and stabilizes inlet air velocity into the manifold runners. Its contoured helical internal bore organizes airflow into a denser, streamlined column, reducing boundary layer separation when the throttle butterfly opens. The anodized finish protects against engine bay heat soak, corrosion, and oil vapor degradation, maintaining a leak-free seal across all operating temperatures.\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 FX35\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 \/ S50\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;\"\u003e280 hp \/ 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;\"\u003eN\/A\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 FX35 Base 3.5L V6 (RWD \/ AWD)\u003c\/li\u003e\n  \u003cli\u003e2004 Infiniti FX35 Base 3.5L V6 (RWD \/ AWD)\u003c\/li\u003e\n  \u003cli\u003e2005 Infiniti FX35 Base 3.5L V6 (RWD \/ AWD)\u003c\/li\u003e\n  \u003cli\u003e2006 Infiniti FX35 Base 3.5L V6 (RWD \/ AWD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Infiniti VQ Performance Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to match the high-revving dynamics of the Nissan FM architecture, this mechanical upgrade restores low-end punch and intake velocity without requiring ECU flashes or risking diagnostic trouble codes.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50498972680440,"sku":"DS-EKR5YR7Q6","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/throttle-body-spacer-for-infiniti-fx35-2003-2006-3-5l-1.jpg?v=1789275912","url":"https:\/\/performancechiptuning.com\/fr\/products\/throttle-body-spacer-for-infiniti-fx35-2003-2006-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}