{"product_id":"throttle-body-spacer-for-jeep-grand-cherokee-1999-2004-4-0l","title":"Throttle Body Spacer for Jeep Grand Cherokee (1999-2004) 4.0L","description":"\u003ch2\u003ePrecision Billet Throttle Body Spacer for 1999-2004 Jeep Grand Cherokee\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Increases intake plenum volume and stabilizes inlet air velocity between the throttle body and manifold to improve low-end torque and throttle response on 4.0L engines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Grand Cherokee Intake Velocity Restriction\u003c\/h3\u003e\n\u003cp\u003eThe factory intake assembly on the 4.0L WJ places the throttle body in direct, blunt contact with the cast intake manifold plenum. This compact runner geometry causes localized turbulence and boundary-layer shear at immediate tip-in, disrupting smooth volumetric filling at low-to-mid RPM operating ranges. In low-speed trail crawls or loaded towing scenarios, this abrupt transition results in sluggish engine response and delayed low-end torque development.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eCNC-machined from solid 6061-T6 billet aluminum, this spacer provides structural rigidity and resists thermal deformation under severe engine bay heat soak. The extended bore geometry lengthens the intake tract to smooth incoming airflow vectors directly into the manifold runners, promoting uniform air mass distribution. An anodized surface finish prevents galvanic corrosion, while the included 304 stainless steel extended hardware maintains uniform clamping torque across the mating gasket to prevent 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;\"\u003e1999-2004 Jeep Grand Cherokee\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;\"\u003e4.0L PowerTech I6 \/ WJ\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;\"\u003e195 hp \/ 230 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\u003e1999-2004 Jeep Grand Cherokee WJ (4.0L Inline-6 Engine)\u003c\/li\u003e\n  \u003cli\u003eFits Laredo, Limited, Sport, Special Edition, and Columbia Edition trims\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Jeep Trail-Ready Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand prolonged thermal cycling, chassis vibration, and severe off-camber trail stress, this solid-billet spacer delivers reliable low-RPM throttle modulation without cracking or risking manifold air leaks in off-road environments.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50498915467512,"sku":"DS-E1FNCZESH","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/throttle-body-spacer-for-jeep-grand-cherokee-1999-2004-4-0l-1.jpg?v=1789275133","url":"https:\/\/performancechiptuning.com\/es\/products\/throttle-body-spacer-for-jeep-grand-cherokee-1999-2004-4-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}