{"product_id":"stone-exhaust-bmw-b58-f30-f32-cat-back-exhaust-system-340i-440i","title":"Stone Exhaust BMW B58 F30 F32 OEM Integrated Valved Catback Exhaust System (340i \u0026 440i)","description":"\u003cp class=\"unreset\"\u003eThis Exhaust System is often purchased with the \u003cspan style=\"text-decoration: underline; color: #2b00ff;\"\u003e\u003cstrong\u003e\u003ca style=\"color: #2b00ff; text-decoration: underline;\" title=\"Stone Exhaust BMW B58 Catless Performance Downpipe (Inc. M140i, M240i, 440i, 540i \u0026amp; X5 M40i) - ML Performance US\" href=\"\/products\/stone-exhaust-bmw-b58-catless-performance-downpipe-inc-m140i-m240i-440i-540i-x5-m40i\"\u003eStone Exhaust BMW B58 Catless Performance Downpipe (Inc. M140i, M240i, 440i, 540i, 740i \u0026amp; X5 M40i)\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003eor the \u003ca title=\"Stone Exhaust BMW B58 Eddy Catalytic Performance Downpipe (Inc. M140i, M240i, 440i, 540i \u0026amp; X5 M40i) - ML Performance US\" href=\"\/products\/stone-exhaust-bmw-b58-eddy-catalytic-performance-downpipe-inc-m140i-m240i-440i-540i-x5-m40i\"\u003e\u003cspan style=\"text-decoration: underline; color: #2b00ff;\"\u003e\u003cstrong\u003eStone Exhaust BMW B58 Eddy Catalytic Performance Downpipe (Inc. M140i, M240i, 440i, 540i, 740i \u0026amp; X5 M40i)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eYou may wish to add the \u003c\/span\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca style=\"color: #2b00ff;\" href=\"https:\/\/stoneexhausts.com\/products\/stone-cat-back-valvetronic-system-package\" target=\"_blank\" data-mce-href=\"https:\/\/stoneexhausts.com\/products\/stone-cat-back-valvetronic-system-package\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStone Valvetronic System\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e (Singe Valve) which enables you to control the valves remotely via the stone remote controller.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eStone Exhaust\u003cspan\u003e Cat-Back Exhaust System\u003c\/span\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e(340i \u0026amp; 440i)\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\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 Exhaust System found on the BMW B58 F30 F32 340i \u0026amp; 440i. \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 src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering - ML Performance US\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\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\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System Bending - ML Performance US\" style=\"float: none;\"\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: start;\"\u003e\u003cimg style=\"float: none;\" height=\"1024x1024\" width=\"1024x1024\" 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_-_1_1024x1024.jpg?v=1572828150\"\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: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - ML Performance US\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic BMW B58 \u003cspan\u003eF30 F32\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e340i \u0026amp; 440i. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM Integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\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\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- B58 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW 3 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF30 LCI\/F31LCI 340i\/340i xDrive (2014-2018)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBMW 4 Series \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF32\/F32 LCI 440i\/440i x\u003cspan\u003eDrive (2015-2017)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eF33 440i (2015-2017)\/440i x\u003cspan\u003eDrive (2013-2017)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF33 LCI 440i\/440i xDrive (2016-2018)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eF36 440i\/440i x\u003cspan\u003eDrive (2015-2017)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF36 LCI 440i\/440i xDrive (2016-2018)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\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 \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePart Number\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eAP514B58 (Dual Exit with Twin Tailpipes \/ Require original Bumper)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eAP514QB58 (Dual Exit with Quad Tailpipes \/ Require M Sport bumper)\u003c\/span\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Dual Exit with Twin Tailpipes \/ Require Original Bumper \/ Flat Cut Gloss Carbon Fiber (82mm)","offer_id":48679172604129,"sku":"AP514B58-8200CM","price":3835.25,"currency_code":"USD","in_stock":true},{"title":"Dual Exit with Quad Tailpipes \/ M Sport Bumper \/ Flat Cut Gloss Carbon Fiber (82mm)","offer_id":48679172636897,"sku":"AP514QB58-8200CG","price":4459.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/7608\/4961\/files\/STONEEXHAUSTBMWB58F30F32CAT-BACKEXHAUSTSYSTEM_340I_440I__01.jpg?v=1784822034","url":"https:\/\/mlperformanceusa.com\/products\/stone-exhaust-bmw-b58-f30-f32-cat-back-exhaust-system-340i-440i","provider":"ML Performance USA","version":"1.0","type":"link"}