{"product_id":"granatelli-hd-4-00-inch-clamshell-318540cs","title":"Granatelli HD 4.00 Inch Clamshell 318540CS","description":"\u003cp\u003e4.0\" (102mm) Clamshell Spare, Each- Aluminum Black\u003c\/p\u003e \u003ch2\u003eGranatelli Motor Sports Dual Seal HD 4.0 Inch Tubing Coupler Clamp\u003c\/h2\u003e \u003ch2\u003eSKU: 318540CS\u003c\/h2\u003e \u003ch2\u003eHeavy-Duty Quick-Release Clamshell Clamp for Extreme Turbo and High-Boost Applications\u003c\/h2\u003e \u003cp\u003eThe \u003cstrong\u003eGranatelli Motor Sports Dual Seal HD 4.0 Inch Tubing Coupler Clamp\u003c\/strong\u003e is built for extreme-performance applications where maximum airflow, boost retention, and reliability are non-negotiable. Precision-machined from \u003cstrong\u003eT-6061 aluminum\u003c\/strong\u003e, this clamp is engineered to handle the demands of high-horsepower turbocharged and forced-induction systems while maintaining a clean, professional appearance.\u003c\/p\u003e \u003cp\u003eFeaturing Granatelli’s \u003cstrong\u003epatented pin-and-ball quick-release clamping mechanism\u003c\/strong\u003e, this clamshell-style clamp provides a secure mechanical lock that resists vibration, heat cycling, and extreme boost pressure. Designed for \u003cstrong\u003e4.0-inch (102mm) tubing couplers\u003c\/strong\u003e, it delivers consistent, leak-free sealing in large-diameter intake and charge pipe systems.\u003c\/p\u003e \u003ch2\u003eProduct Specifications\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTubing Coupler Type:\u003c\/strong\u003e Straight\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T-6061 Aluminum\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInlet Diameter:\u003c\/strong\u003e 4.00 in. (102.00 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOutlet Diameter:\u003c\/strong\u003e 4.00 in. (102.00 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold individually\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003ePerformance Features\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eDual-seal HD design for maximum boost retention and leak prevention\u003c\/li\u003e \u003cli\u003ePin-and-ball quick-release system for fast installation and servicing\u003c\/li\u003e \u003cli\u003eVibration-resistant under extreme boost and engine movement\u003c\/li\u003e \u003cli\u003eMaintains sealing integrity under high pressure and elevated temperatures\u003c\/li\u003e \u003cli\u003eIdeal for repeated disassembly without clamp fatigue or loss of clamping force\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eIncluded Components\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eOne heavy-duty outer clamp assembly\u003c\/li\u003e \u003cli\u003eOne ball\/pin safety retention pin\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eDesigned for professional fabricators, racers, and serious performance enthusiasts, the \u003cstrong\u003eGranatelli Motor Sports Dual Seal HD 4.0 Inch Clamshell Clamp\u003c\/strong\u003e is the ideal solution for \u003cstrong\u003elarge-frame turbo systems, high-boost charge piping, intercooler connections, and extreme horsepower builds\u003c\/strong\u003e. When airflow, strength, and serviceability matter most, Granatelli Motor Sports delivers proven performance.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cul class=\"productInfo\"\u003e \u003cli class=\"wsm_product_info_sku\"\u003e\n\u003clabel\u003eSKU: \u003c\/label\u003e\u003cspan class=\"wsm-prod-sku\"\u003e318540CS\u003c\/span\u003e\n\u003c\/li\u003e \u003cli class=\"wsm_product_info_itemid wsm-prod-stock-id wsm-prod-dealer-id\"\u003e\n\u003clabel\u003eItem #: \u003c\/label\u003e318540CS\u003c\/li\u003e \u003cli class=\"wsm_product_info_itemid wsm-prod-upccode\"\u003e\n\u003clabel\u003eUPC #: \u003c\/label\u003e\u003cspan itemprop=\"mpn\"\u003e802735041002\u003c\/span\u003e\n\u003c\/li\u003e \u003cli class=\"wsm_product_info_brand\"\u003e \u003clabel\u003eBrand:\u003c\/label\u003e \u003ca itemprop=\"brand\" itemscope=\"\" itemtype=\"http:\/\/schema.org\/Brand\" href=\"https:\/\/granatellimotorsports.com\/b-162221-granatelli-motor-sports.html\" title=\"Granatelli Motor Sports - Granatelli Motor Sports HD 4.00 Inch Clamshell 318540CS\"\u003eGranatelli Motor Sports\u003c\/a\u003e \u003c\/li\u003e \u003c!-- Only list fitment attributes if we are not using the table view --\u003e \u003cli class=\"wsm_product_details_tags2\"\u003e \u003clabel\u003eProducts:\u003c\/label\u003e \u003ca href=\"https:\/\/granatellimotorsports.com\/ag-1783672-hd-clamp-v-band.html\"\u003e Hd Clamp\/ V-Band \u003c\/a\u003e \u003c\/li\u003e \u003cli class=\"wsm_product_info_condition\"\u003e \u003clabel\u003eCondition:\u003c\/label\u003e New \u003c\/li\u003e \u003c\/ul\u003e \u003c!-- Begin Product Categories --\u003e \u003cdiv class=\"wsm-prod-cat-list\"\u003e \u003ch2 class=\"wsm-tab-content-header\"\u003eCategories\u003c\/h2\u003e \u003cul class=\"productCats\"\u003e \u003cli\u003e\u003ca href=\"\/c-1389404-hd-clamp-v-band.html\" title=\"HD Clamp\/ V-Band - Granatelli Motor Sports HD 4.00 Inch Clamshell 318540CS\"\u003eHD Clamp\/ V-Band\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"display:none\"\u003e\u003cspan itemprop=\"category\"\u003eHD Clamp\/ V-Band\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"FR SPORT","offers":[{"title":"Default Title","offer_id":50611703545994,"sku":"8XUTH","price":109.97,"currency_code":"USD","in_stock":true}],"url":"https:\/\/pistontwistin.org\/products\/granatelli-hd-4-00-inch-clamshell-318540cs","provider":"Piston Twistin LLC","version":"1.0","type":"link"}