{"product_id":"stone-exhaust-mercedes-benz-amg-m256-w213-s213-c238-eddy-catalytic-downpipe-e53-cls450-cls53-gle53","title":"Stone Exhaust Mercedes-Benz AMG M256 W213\/S213\/C238 Catless Downpipe (E53, CLS450, CLS53 \u0026 GLE53)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eStone Exhaust employs state of the art 3D flow velocity measurement software and the technique of a one-piece mandrel bent pipe design. Using mechanical welding arms to accurately weld stops ash generating in the pipe wall which can cause vapor lock and poor exhaust efficiency. Stone Exhaust’s innovative manufacturing process of the catless downpipe prevents multiple welding positions and vapor lock whilst maximizing efficiency of the exhaust turbine.\u003c\/span\u003e\u003cbr\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCatless downpipe for E53, CLS450, CLS53 \u0026amp; GLE53\u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMachine Welding\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the M256 Exhaust System found on the Mercedes-Benz AMG M256 E53, CLS450, CLS53 \u0026amp; GLE53. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering - ML Performance US\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System Bending - ML Performance US\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800? to 1100?) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - ML Performance US\" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - ML Performance US\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompatibility - M256 Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cspan\u003eMercedes-Benz E-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW213 E53 (2018+)\u003c\/li\u003e\n\u003cli\u003eS213 E53 (2018+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eC238 \u003c\/span\u003eE53 (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cspan\u003eMercedes-Benz CLS-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eC257 CLS450 (2018+)\u003c\/li\u003e\n\u003cli\u003eC257 CLS53 (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMercedes-Benz GLE-Class\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW166 \/ W167 \/ C292 GLE53 (2019+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eM228P (Non-OPF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eM228PG (OPF)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Non-OPF","offer_id":48679164313825,"sku":"M228P","price":1687.76,"currency_code":"USD","in_stock":true},{"title":"OPF","offer_id":48679164346593,"sku":"M228PG","price":1687.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/7608\/4961\/files\/StoneExhaust_b2ff9465-a78c-42a9-8bb9-6c9d032eac4c.png?v=1784821284","url":"https:\/\/mlperformanceusa.com\/products\/stone-exhaust-mercedes-benz-amg-m256-w213-s213-c238-eddy-catalytic-downpipe-e53-cls450-cls53-gle53","provider":"ML Performance USA","version":"1.0","type":"link"}