{"product_id":"fast-146303-intake-manifold-lsxhr-ls1-2-6-cathedral-port","title":"FAST 146303 - Intake Manifold LSXHR LS1\/2\/6 (Cathedral Port)","description":"\u003cp\u003eFAST 146303 - Intake Manifold LSXHR LS1\/2\/6 (Cathedral Port)\u003c\/p\u003e\u003cp\u003eIntake Manifold - LSXHR - 103 mm Throttle Body Flange - Tunnel Ram - Rectangle Port - Fuel Rails Included - Plastic - Black - GM LS-Series - Kit\u003c\/p\u003e\u003cp\u003eFAST is expanding their line of the industry's first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspirated GM Cathedral Port LS engines.\u003c\/p\u003e\u003cp\u003eThe FAST LSXHR 103mm Intake Manifold is ideal for generating maximum power in boosted and naturally aspirated GM LS cathedral port engines. It ships with a set of tall removeable velocity stacks, however medium and short stack options can be purchased separately. This allows interchanging of the various runner lengths so racers can experiment with finding which combination makes the most power in their application. Its polymer construction is lightweight, very strong and virtually eliminates power-robbing heat soak that occurs with commonly available aluminum intake manifolds. The manifold has been optimized to make power from 5,000 to 7,500 RPM, with testing showing 20+ horsepower gains over competitor tunnel ram intake manifolds. The FAST LSXHR 103mm Intake Manifold is designed specifically with boosted applications in mind and is rated for up to 45psi of continuous boost pressure. The compound fuel injector angle aims the spray pattern for ideal atomization, resulting in maximum power production and superior drivability. Also included with the intake manifold are custom fuel rails and necessary hardware. A reversible top allows for forward- or firewall-facing throttle body installations. The intake manifold also features two nitrous nozzle bosses per runner for clean and easy direct port system installations. Additionally, its 103mm throttle body opening can be port matched up to 105mm.\u003c\/p\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEngine Block Style\u003c\/strong\u003e: \u003cspan\u003eStock\/ OEM standard deck\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCylinder Head Configuration\u003c\/strong\u003e: \u003cspan\u003eLS1 \/ Cathedral Port\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInjection Style\u003c\/strong\u003e: \u003cspan\u003eMulti-Port\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBasic Operating RPM Range\u003c\/strong\u003e: \u003cspan\u003e5000-7500\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eIntake Section Included\u003c\/strong\u003e: \u003cspan\u003eComplete\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEGR\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInjectors Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMulti-Port Fuel Rails Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAftermarket Fuel Rail Required\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Body Included\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThrottle Body Bore Size\u003c\/strong\u003e: \u003cspan\u003e103mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSupplemental Bosses Cast-In\u003c\/strong\u003e: \u003cspan\u003eNo\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSupplemental Bosses Machined\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FAST","offers":[{"title":"Default Title","offer_id":47298657943690,"sku":"FAST-146303","price":1282.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_3a5272f2ae6cb241e03400209f6b15b6_normalized.jpg?v=1776724482","url":"https:\/\/www.onlyinstock.com\/products\/fast-146303-intake-manifold-lsxhr-ls1-2-6-cathedral-port","provider":"Only In Stock","version":"1.0","type":"link"}