{"product_id":"aluminum-throttle-body-spacer-for-1999-2007-silverado-sierra-4-8l-5-3l-6-0l-silverado-1500-escalade-yukon","title":"Chevrolet Silverado \/ Tahoe \/ Suburban \/ Avalanche \/ SSR, GMC Sierra \/ Yukon, Cadillac Escalade \u0026 Hummer H2 Billet Aluminum Throttle Body Spacer 1999 - 2007 (4.8L \/ 5.3L \/ 6.0L \/ 8.1L V8)","description":"\u003cp\u003eImprove throttle response and low-end torque on your GM full-size truck or SUV with this premium billet aluminum throttle body spacer, precision CNC-machined from aircraft-grade 6061-T6 aluminum for permanent durability and proven performance benefits. The spacer installs between the throttle body and intake manifold, increasing the air volume in the intake plenum and creating an air swirl effect that improves air\/fuel mixing for noticeable gains in low-end torque, throttle response, and fuel efficiency under light-throttle driving. The integrated original silicon seal provides strong sealing performance with high-temperature and corrosion resistance, while the included 304 stainless steel mounting bolts (verified through 72-hour salt spray and 180-hour high-temperature testing) deliver reliable long-term clamping force in the harsh underhood environment.\u003c\/p\u003e\n\u003ch6\u003eFeatures:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003ePremium 6061-T6 aircraft-grade billet aluminum construction – delivers exceptional strength, lightweight performance, and long-term durability\u003c\/li\u003e\n\u003cli\u003eCNC machined precision – precision-machined for perfect fit and finish to factory throttle body and intake manifold mounting points\u003c\/li\u003e\n\u003cli\u003eIntegrated silicone seal – strong sealing performance with high-temperature and anti-corrosion properties\u003c\/li\u003e\n\u003cli\u003e304 stainless steel mounting bolts – high-strength corrosion-resistant fasteners verified through Salt Spray Test (NSS 72 hours) and High Temperature Test (NSS 180 hours)\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation – no modifications required, installs between factory throttle body and intake manifold\u003c\/li\u003e\n\u003cli\u003eWide application compatibility – fits the entire GM full-size truck and SUV V8 lineup from 1999-2007\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eSpecifications:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eCondition: 100% Brand New\u003c\/li\u003e\n\u003cli\u003eType: Throttle Body Spacer\u003c\/li\u003e\n\u003cli\u003eMaterial: 6061-T6 Aircraft-Grade Billet Aluminum\u003c\/li\u003e\n\u003cli\u003eConstruction: CNC Machined\u003c\/li\u003e\n\u003cli\u003eSealing: Integrated Silicone Seal\u003c\/li\u003e\n\u003cli\u003eMounting Hardware: 304 Stainless Steel Bolts\u003c\/li\u003e\n\u003cli\u003eItem Weight: 0.4 kg\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 spacer per pack\u003c\/li\u003e\n\u003cli\u003ePosition: Between Throttle Body \u0026amp; Intake Manifold\u003c\/li\u003e\n\u003cli\u003eEngine Compatibility: GM 4.8L \/ 5.3L \/ 6.0L \/ 8.1L V8\u003c\/li\u003e\n\u003cli\u003ePurpose: Performance Upgrade \/ Throttle Response Enhancement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eFitment:\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eCritical regulatory note: NOT for sale in California or states adopting CARB regulations. Pending Air Resource Board Exemption — verify legal compliance for your jurisdiction before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch6\u003eCadillac Fitment:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eCadillac Escalade (Including EXT \u0026amp; ESV) V8 5.3L Gas (2001 – 2005)\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade (Including EXT \u0026amp; ESV) V8 6.0L Gas (2001 – 2006)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eChevrolet Fitment:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eChevrolet Avalanche V8 5.3L Gas (2002 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche V8 8.1L Gas (2002 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado V8 4.8L Gas (1999 – 2007)\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado V8 5.3L Gas (1999 – 2007)\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado V8 6.0L Gas (1999 – 2007)\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 2500 HD V8 8.1L Gas (2001 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Silverado 3500 HD V8 8.1L Gas (2001 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet SSR V8 5.3L Gas (2003 – 2004)\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban V8 5.3L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban V8 6.0L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban V8 8.1L Gas (2001 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Tahoe V8 4.8L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eChevrolet Tahoe V8 5.3L Gas (2000 – 2006)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eGMC Fitment:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eGMC Sierra V8 4.8L Gas (1999 – 2007)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra V8 5.3L Gas (1999 – 2007)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra V8 6.0L Gas (1999 – 2007)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 2500 HD V8 8.1L Gas (2001 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 3500 HD V8 8.1L Gas (2001 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon V8 4.8L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon V8 5.3L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon Denali V8 6.0L Gas (2001 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL V8 5.3L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL Denali V8 6.0L Gas (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL V8 8.1L Gas (2001 – 2006)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eHummer Fitment:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eHummer H2 (Including SUT) V8 6.0L Gas (2003 – 2007)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eContents:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e1x Billet Aluminum Throttle Body Spacer\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel Mounting Bolts\u003c\/li\u003e\n\u003cli\u003eIntegrated Silicone Seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eBenefits:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eImproved throttle response – the increased intake plenum volume and air swirl effect deliver noticeably sharper throttle response, particularly under light to moderate throttle inputs\u003c\/li\u003e\n\u003cli\u003eEnhanced low-end torque – the air swirl effect improves air\/fuel mixing for better cylinder filling at low to mid RPM, where these full-size truck and SUV engines benefit most\u003c\/li\u003e\n\u003cli\u003eImproved fuel efficiency under cruise conditions – better air\/fuel mixing reduces the need for heavy throttle application during normal driving, supporting modest fuel economy gains\u003c\/li\u003e\n\u003cli\u003ePremium 6061-T6 aircraft-grade billet aluminum construction permanently outlasts factory components and provides clean appearance for engine bay aesthetics\u003c\/li\u003e\n\u003cli\u003e304 stainless steel mounting bolts deliver superior corrosion resistance compared to standard plated hardware – critical for long-term reliability in harsh underhood environments\u003c\/li\u003e\n\u003cli\u003eIntegrated silicone seal provides reliable leak-free operation between the throttle body and intake manifold\u003c\/li\u003e\n\u003cli\u003eWide cross-platform compatibility makes this a versatile upgrade for owners of multiple GM truck and SUV applications\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation – straightforward DIY upgrade requiring no modifications or specialized tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eImportant Regulatory Notes:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOT for sale in California\u003c\/strong\u003e – this product is pending Air Resource Board (ARB) Exemption and is not legally sold in California for street-driven vehicles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOT for sale in CARB-compliant states\u003c\/strong\u003e – includes other states adopting California Air Resources Board emissions regulations\u003c\/li\u003e\n\u003cli\u003eVerify legal compliance with your local emissions regulations before installing this product on a street-driven vehicle\u003c\/li\u003e\n\u003cli\u003eOff-road, race, and competition use applications are unaffected by these regulatory restrictions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eInstallation Notes:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine compatibility verification required:\u003c\/strong\u003e Confirm your engine is one of the listed 4.8L \/ 5.3L \/ 6.0L \/ 8.1L GM V8 variants before ordering – this spacer is not compatible with other engine families\u003c\/li\u003e\n\u003cli\u003eAllow the engine to fully cool before beginning installation to avoid burns from hot engine components\u003c\/li\u003e\n\u003cli\u003eDisconnect the negative battery terminal before beginning installation to prevent electrical issues\u003c\/li\u003e\n\u003cli\u003eCarefully remove the throttle body from the intake manifold – disconnect throttle linkage, electrical connectors, and vacuum lines before removal\u003c\/li\u003e\n\u003cli\u003eClean both the throttle body mounting flange and intake manifold flange thoroughly before installing the spacer – any debris or old gasket material will compromise sealing\u003c\/li\u003e\n\u003cli\u003ePosition the spacer between the throttle body and intake manifold with the integrated silicone seal facing the correct direction per included instructions\u003c\/li\u003e\n\u003cli\u003eUse the included 304 stainless steel bolts to secure the throttle body and spacer assembly to the intake manifold\u003c\/li\u003e\n\u003cli\u003eTighten all mounting hardware to factory torque specifications using a calibrated torque wrench – follow proper criss-cross torque sequence to prevent flange warping\u003c\/li\u003e\n\u003cli\u003eReconnect throttle linkage, electrical connectors, vacuum lines, and battery terminal to their original positions\u003c\/li\u003e\n\u003cli\u003eTest for vacuum leaks using a smoke test or carb cleaner spray method to verify leak-free operation before driving\u003c\/li\u003e\n\u003cli\u003eVerify proper throttle operation through full travel range before driving – check for binding, sticking, or incomplete return to closed position\u003c\/li\u003e\n\u003cli\u003eAfter installation, scan for stored fault codes and clear any historical codes that may have accumulated during the modification\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended if you are unfamiliar with throttle body service procedures\u003c\/li\u003e\n\u003cli\u003eIf unsure about compatibility with your specific GM truck or SUV variant, contact our team with your year, model, and engine displacement before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eWarranty:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e12-month standard warranty from date of purchase\u003c\/li\u003e\n\u003cli\u003eContact our support team for assistance with any issues\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K2 Industries","offers":[{"title":"Red","offer_id":46021661163754,"sku":"1005009535873620-Red","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":46056994734314,"sku":"1005009535873620-Blue","price":59.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/S7ac4aeb1aab44596a81fad62a7663de9r.webp?v=1777835256","url":"https:\/\/www.k2-industries.com\/en-hk\/products\/aluminum-throttle-body-spacer-for-1999-2007-silverado-sierra-4-8l-5-3l-6-0l-silverado-1500-escalade-yukon","provider":"K2 Industries","version":"1.0","type":"link"}