{"product_id":"throttle-body-spacer-for-gmc-sierra-2007-2012-4-8l-5-3l-6-0l-6-2l","title":"Throttle Body Spacer for GMC Sierra (2007-2012) 4.8L 5.3L 6.0L 6.2L","description":"\u003ch2\u003eBillet Throttle Body Spacer for 2007-2012 GMC Sierra\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Lengthens the intake tract and optimizes post-throttle velocity to sharpen off-idle pedal response and enhance low-RPM torque delivery.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Sierra Airflow Restriction\u003c\/h3\u003e\n\u003cp\u003eThe factory intake setup on GMT900 trucks introduces sharp transitions immediately behind the throttle body blade. As incoming air enters the factory composite plenum, turbulence and boundary-layer separation reduce volumetric efficiency at lower engine speeds. This turbulence delays throttle tip-in response, causing noticeable lag when initiating acceleration or pulling heavy loads under 3,000 RPM.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003ePrecision CNC-machined from solid 6061-T6 billet aluminum, this spacer increases intake plenum volume while directing airflow through an engineered bore. The machined transition stabilizes incoming air velocity before it enters the intake manifold runners, promoting uniform cylinder filling and reducing manifold pressure drops. Finished in a protective anodized coating, it resists under-hood thermal cycling and galvanic corrosion. Supplied with dedicated mounting hardware and gaskets to ensure an airtight seal against 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;\"\u003e2007-2012 GMC Sierra\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;\"\u003eGen IV Vortec V8 \/ 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;\"\u003e295–403 hp \/ 305–417 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\u003e2007-2012 GMC Sierra 1500 (4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8)\u003c\/li\u003e\n  \u003cli\u003e2007-2012 GMC Sierra 2500HD (6.0L V8)\u003c\/li\u003e\n  \u003cli\u003e2007-2012 GMC Sierra 3500HD (6.0L V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle severe towing cycles and off-road vibration, this mechanical upgrade delivers consistent low-range tractive effort without triggering diagnostic trouble codes or requiring aftermarket ECU calibration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50498884075768,"sku":"DS-EZJ2BA4NU","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/throttle-body-spacer-for-gmc-sierra-2007-2012-4-8l-5-3l-6-0l-6-2l-1.jpg?v=1789274676","url":"https:\/\/performancechiptuning.com\/es\/products\/throttle-body-spacer-for-gmc-sierra-2007-2012-4-8l-5-3l-6-0l-6-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}