{"product_id":"throttle-body-spacer-for-gmc-yukon-2004-2007-4-8l-5-3l-6-0l-6-2l-8-1l","title":"Throttle Body Spacer for GMC Yukon (2004-2007) 4.8L 5.3L 6.0L 6.2L 8.1L","description":"\u003ch2\u003ePrecision Billet Throttle Body Spacer for 2004-2007 GMC Yukon\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Increases effective plenum volume and stabilizes incoming airflow velocity between the throttle body and intake manifold to sharpen off-idle throttle response and low-end torque.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Yukon Airflow Turbulence Issue\u003c\/h3\u003e\n\u003cp\u003eFactory GM Vortec intake tracts feature abrupt cross-sectional transitions immediately downstream of the throttle blade. This geometry creates boundary-layer shear and turbulent air pockets entering the manifold plenum. Under heavy-load towing and sudden tip-in, this turbulence restricts runner filling efficiency, resulting in sluggish off-the-line throttle lag and diminished low-RPM torque delivery.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003ePrecision CNC-machined from aircraft-grade 6061-T6 billet aluminum, this spacer provides structural rigidity and zero warpage under high engine-bay heat cycles. The internal bore profile smooths the intake tract transition, organizing the incoming charge column to optimize air velocity into the manifold runners. Finished in a protective anodized coating, the assembly includes corrosion-resistant 304 stainless steel hardware to ensure a durable, leak-free seal without requiring ECU recalibration.\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;\"\u003e2004-2007 GMC Yukon\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;\"\u003eVortec Gen III \u0026amp; IV (4.8L, 5.3L, 6.0L, 6.2L, 8.1L) \/ GMT800, GMT900\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;\"\u003e285–380 hp \/ 295–440 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\u003e2004-2007 GMC Yukon 4.8L V8\u003c\/li\u003e\n  \u003cli\u003e2004-2007 GMC Yukon 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2004-2007 GMC Yukon Denali 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2007 GMC Yukon Denali 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2004-2006 GMC Yukon XL 1500 5.3L \/ 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2004-2006 GMC Yukon XL 2500 6.0L \/ 8.1L Big Block V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eFull-size GMC platforms rely on instant torque delivery to move heavy payloads and manage steep towing grades. This billet hardware upgrade restores intake velocity and eliminates low-end hesitation, delivering reliable mechanical durability built to withstand severe-duty truck demands.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50498889941240,"sku":"DS-EZ7IC3XXW","price":63.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/throttle-body-spacer-for-gmc-yukon-2004-2007-4-8l-5-3l-6-0l-6-2l-8-1l-1.jpg?v=1789274922","url":"https:\/\/performancechiptuning.com\/products\/throttle-body-spacer-for-gmc-yukon-2004-2007-4-8l-5-3l-6-0l-6-2l-8-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}