{"product_id":"vacuum-manifold-for-rennen-itb-porsche-911-964","title":"Vacuum Manifold for Rennen ITB. Porsche 911 \/ 964","description":"\u003cp\u003e\u003cb\u003eRennen Vacuum Manifold for Individual Throttle Body (ITB) Systems\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Rennen Vacuum Manifold is a key component of the Rennen Individual Throttle Body (ITB) Upgrade system, designed to provide a stable and consistent vacuum signal from multiple throttle bodies on high-performance Porsche engines. Engineered specifically for use with Rennen ITB installations, this vacuum manifold simplifies vacuum management while supporting modern engine management systems, fuel pressure regulators, brake servo systems and manifold pressure sensors.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFits:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePorsche 911 1974-1977 2.7L \/ 1976-77 3.0 Carrera\u003c\/li\u003e\n\u003cli\u003ePorsche 911 1978-1983 3.0L \/ SC\u003c\/li\u003e\n\u003cli\u003ePorsche 911 1984-1986 3.2L\u003c\/li\u003e\n\u003cli\u003ePorsche 911 1987-1989 3.2L G50\u003c\/li\u003e\n\u003cli\u003ePorsche 964 (911) C2 1989-93\u003c\/li\u003e\n\u003cli\u003ePorsche 964 (911) C4 1989-93\u003c\/li\u003e\n\u003cli\u003ePorsche 964 (911) RS 3.6L 1991-93\u003c\/li\u003e\n\u003cli\u003ePorsche 964 (911) RS 3.8L 1991-93\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIndividual Throttle Body systems dramatically improve airflow and throttle response by providing each cylinder with its own dedicated throttle plate. However, because each throttle body only generates a small and highly fluctuating vacuum signal, a vacuum manifold is required to collect and balance vacuum from all cylinders into a stable source that can be used by engine management and ancillary systems.\u003c\/p\u003e\n\u003cp\u003eFor Porsche enthusiasts seeking improved engine response, sharper acceleration and enhanced induction sound, the Rennen ITB system delivers one of the most desirable upgrades available for naturally aspirated Porsche engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhat Does a Vacuum Manifold Do?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA vacuum manifold combines vacuum signals from each individual throttle body into a single, stable vacuum source.\u003c\/p\u003e\n\u003cp\u003eThis allows critical engine systems to operate correctly, including:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEngine management systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMAP (Manifold Absolute Pressure) sensors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFuel pressure regulators\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrake servo assistance systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdle control systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVacuum-operated accessories\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBy smoothing the pulsing vacuum signals generated by individual throttle bodies, the manifold improves tuning accuracy and system reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy Is an ITB Upgrade So Appealing?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eIndividual Throttle Body systems are widely regarded as one of the most effective naturally aspirated performance upgrades available for Porsche engines.\u003c\/p\u003e\n\u003cp\u003eUnlike a conventional plenum intake system, each cylinder receives air through its own dedicated throttle body, resulting in significantly improved airflow characteristics and immediate throttle response.\u003c\/p\u003e\n\u003cp\u003eBenefits of a Rennen ITB upgrade include:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSharper throttle response\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved engine breathing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased airflow efficiency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnhanced induction sound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreater driver engagement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved tuning flexibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased performance potential\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMotorsport-inspired engine character\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor many Porsche enthusiasts, the instant throttle response and distinctive intake sound are among the most rewarding aspects of an ITB conversion.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy Replacement or Installation Matters\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA properly designed vacuum manifold is essential for extracting the full benefits of an ITB conversion.\u003c\/p\u003e\n\u003cp\u003eWithout a stable vacuum source, engine management systems may receive inconsistent readings, affecting drivability, idle quality and tuning accuracy.\u003c\/p\u003e\n\u003cp\u003eBenefits include:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStable vacuum signal generation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved ECU calibration accuracy\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBetter idle characteristics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConsistent fuel pressure regulation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReliable operation of vacuum-assisted systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSimplified installation and plumbing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnhanced overall engine performance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eFeatures \u0026amp; Benefits\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for Rennen Individual Throttle Body systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCombines vacuum signals from multiple throttle bodies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProvides stable vacuum reference source\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupports MAP sensor operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for Rennen EFI conversion projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproves engine management performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for performance and motorsport applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrecision-engineered for Porsche engine upgrades       \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rennen Plus","offers":[{"title":"Default Title","offer_id":53625203294487,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/6226\/3831\/files\/JSR45.webp?v=1783321146","url":"https:\/\/rennenplus.com.au\/products\/vacuum-manifold-for-rennen-itb-porsche-911-964","provider":"Rennen Plus","version":"1.0","type":"link"}