{"product_id":"throttle-body-spacer-for-chevrolet-suburban-2003-2007-5-3l-6-0l-8-1l","title":"Throttle Body Spacer for Chevrolet Suburban (2003-2007) 5.3L 6.0L 8.1L","description":"\u003ch2\u003eBillet Throttle Body Spacer for 2003-2007 Chevrolet Suburban\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eOptimizes intake plenum volume:\u003c\/strong\u003e Extends the intake tract between the throttle body and plenum to improve incoming air velocity, throttle response, and low-end torque recovery under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Suburban Intake Transition Restriction\u003c\/h3\u003e\n\u003cp\u003eFactory Gen III and Big Block Vortec intake manifolds feature abrupt transitional geometry immediately behind the throttle body blade. Under off-idle and partial-throttle tip-in, this creates boundary-layer air turbulence and uneven runner distribution. For heavy platforms like the Suburban, this flow disruption results in sluggish throttle modulation, laggy throttle response, and compromised low-rpm cylinder filling when pulling heavy payloads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eCNC-machined from solid 6061-T6 billet aluminum, this spacer functions as a plenum extension that straightens incoming air charge before entering the manifold runners. The open\/helical-bore profile reduces turbulent shear and stabilizes velocity across the intake tract. Finished with a corrosion-resistant anodized coating to withstand engine bay heat soak, it installs directly with included Grade 304 stainless steel hardware to maintain consistent clamping pressure without fastener stretching or vacuum leaks.\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;\"\u003e2003-2007 Chevrolet Suburban (1500 \/ 2500)\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;\"\u003e5.3L (LM7\/L59), 6.0L (LQ4), 8.1L (L18) \/ GMT800\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;\"\u003e285–340 hp \/ 325–455 lb-ft (Engine Dependent)\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\u003e2003-2007 Chevrolet Suburban 1500 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2006-2007 Chevrolet Suburban 1500 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2003-2007 Chevrolet Suburban 2500 6.0L V8\u003c\/li\u003e\n  \u003cli\u003e2003-2006 Chevrolet Suburban 2500 8.1L Big Block V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained high-load hauling and demanding towing duty, this direct-fit hardware maintains vacuum integrity without triggering lean codes, preserving factory emissions compliance and powertrain reliability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50498889613560,"sku":"DS-EMQW95QJ1","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-chevrolet-suburban-2003-2007-5-3l-6-0l-8-1l-1.jpg?v=1789274833","url":"https:\/\/performancechiptuning.com\/products\/throttle-body-spacer-for-chevrolet-suburban-2003-2007-5-3l-6-0l-8-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}