{"product_id":"do88-plenum-porsche-911-991-turbo-991-2-carrera","title":"DO88 - Plenum - Porsche 911 991 turbo \/ 991.2 Carrera","description":"\u003cp\u003eThe \u003cstrong\u003edo88 Plenum\u003c\/strong\u003e for the \u003cstrong\u003ePorsche 911 991\u003c\/strong\u003e delivers improved responsiveness across the entire rev range. The original 991 plenum is \u003cstrong\u003eT-shaped\u003c\/strong\u003e, causing the airflow from the throttle body to change direction abruptly as it is distributed to both Intake manifolds. A \u003cstrong\u003eY-shaped\u003c\/strong\u003e plenum distributes the air more evenly and with less pressure drop.\u003c\/p\u003e\u003cp\u003eDevelopment began with a comprehensive 3D scan of the engine bay to map out the installation space. The plenum is made from \u003cstrong\u003ecast aluminium\u003c\/strong\u003e, as casting allows for shapes that cannot be achieved with CNC milling. The connections are CNC-milled and suitable silicone hoses are supplied. The improvement in airflow has been verified using CFD calculations and on our own Superflow SF1020 flow bench.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.do88performance.eu\/bilder\/artiklar\/pdf\/TR-300-9912.pdf\" target=\"_blank\" rel=\"noopener\"\u003eView the fitting instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eY-shaped design instead of the original T-shaped plenum\u003c\/li\u003e\u003cli\u003eMore even air distribution with lower pressure drop\u003c\/li\u003e\u003cli\u003e5% higher airflow: 846 CFM compared to 808 CFM\u003c\/li\u003e\u003cli\u003eFree-form cast aluminium\u003c\/li\u003e\u003cli\u003eCNC-milled connections\u003c\/li\u003e\u003cli\u003eIncludes matching silicone hoses\u003c\/li\u003e\u003cli\u003eImproved throttle response across the entire rev range\u003c\/li\u003e\u003cli\u003eVerified using CFD and on the Superflow SF1020 flow bench\u003c\/li\u003e\u003cli\u003eIncludes all fitting accessories\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eBrand: do88\u003c\/li\u003e\u003cli\u003eProduct type: Plenum\u003c\/li\u003e\u003cli\u003eMaterial: cast aluminium\u003c\/li\u003e\u003cli\u003eDesign: Y-shape\u003c\/li\u003e\u003cli\u003eConnections: CNC-machined\u003c\/li\u003e\u003cli\u003eAirflow at 0.1 bar \/ 1.45 psi pressure drop: 846 CFM\u003c\/li\u003e\u003cli\u003eOEM airflow: 808 CFM\u003c\/li\u003e\u003cli\u003eAirflow increase: 5%\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eContents of the set\u003c\/h2\u003e\u003cul\u003e\u003cli\u003edo88 Plenum\u003c\/li\u003e\u003cli\u003esilicone hoses\u003c\/li\u003e\u003cli\u003eInstallation accessories\u003c\/li\u003e\u003cli\u003eInstallation instructions\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhy is a Y-shape better than the original T-shape?\u003c\/strong\u003e\u003cbr\u003eWith the original T-shaped plenum, the air changes direction abruptly as it is distributed to both Intake manifolds. The Y-shape distributes the air more evenly and with less pressure drop.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eWhy is the plenum cast rather than milled?\u003c\/strong\u003e\u003cbr\u003eCasting allows for shapes that cannot be produced using CNC milling, and airflow is more important than aesthetics.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eHow much higher is the airflow?\u003c\/strong\u003e\u003cbr\u003e846 CFM compared to 808 CFM at 0.1 bar pressure drop, an increase of 5 per cent.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eAre hoses included?\u003c\/strong\u003e\u003cbr\u003eYes, suitable silicone hoses are supplied to ensure a good fit and long service life.\u003cbr\u003e\u003cbr\u003e \u003cstrong\u003eHow was the improvement measured?\u003c\/strong\u003e\u003cbr\u003eUsing CFD calculations and on do88’s own Superflow SF1020 flow bench.\u003c\/p\u003e","brand":"DO88","offers":[{"title":"Default Title","offer_id":62952847868234,"sku":"TR-300-9912","price":628.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/5230\/5482\/files\/DO88_-_Plenum_-_Porsche_911_991_Turbo_991.2_Carrera.jpg?v=1786961014","url":"https:\/\/jt-products.eu\/en\/products\/do88-plenum-porsche-911-991-turbo-991-2-carrera","provider":"JT-Products | Performance Car Parts","version":"1.0","type":"link"}