{"title":"7\/5\/2025 Blogpost ECU Essentials Part 3","description":null,"products":[{"product_id":"stone-exhaust-bmw-n20-f10-f11-528i-catless-downpipe","title":"Stone Exhaust BMW N26 F10 F11 Catless Downpipe (520i \u0026 528i)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eIn order to get even better efficiency for the section of exhaust turbine, as well as to prevent multiple welding positions in the downpipe section, which generates ash in the pipe while welding, causing bad exhaust efficiency, and then generates vaper lock and thus inability to exhaust, Stone Exhaust uses a variety of smart ideas in downpipe design. The company employs flow velocity measurement software in 3D and the technique of one-piece bend pipes, along with mechanical arms which accurately welds without generating ash in the pipe wall in order to further exhaust efficiency of Catless Downpipe. It is a perfect and effective product which has surpassed all similar products in the market.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCatless downpipe for 520i \u0026amp; 528i with N20 engine.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eUnique Flex design to prevent breakage caused by extreme heat \u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMechanical Welding with Precision\u003cbr\u003e\n\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 BMW N26 520i \u0026amp; 528i.\u003cspan style=\"color: #212b36; font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', Roboto, 'Segoe UI', 'Helvetica Neue', sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\" data-mce-style=\"color: #212b36; font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', Roboto, 'Segoe UI', 'Helvetica Neue', sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"\u003e \u003c\/span\u003e\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;\" data-mce-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;\" data-mce-style=\"float: none;\"\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\u003cp\u003e \u003c\/p\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\u003cdiv style=\"text-align: left;\" data-mce-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;\" data-mce-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: left;\" data-mce-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;\" data-mce-style=\"float: none;\"\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;\" data-mce-style=\"text-align: left;\"\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;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eN26 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBMW 5\u003c\/span\u003e\u003cspan\u003e Series\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF10 \u003cspan\u003e520i\/528i(x) (2010-2013)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF10 LCI 520i\/528i(x) (2012-2016)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eF11 520i\/528i(x) (2012-2013)\u003c\/li\u003e\n\u003cli\u003eF11 LCI 520i\/528i(x) (2013-2017)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eA206NP\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\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\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003ePhotos \u0026amp; Videos\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eFitted Photo(s) \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F10 F11 Catless Downpipe (Inc. 520i \u0026amp; 528i) - ML Performance US\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_116e9260-064a-4cf6-9dd4-ad8b6bbb135a_480x480.png?v=1587751935\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F10 F11 Catless Downpipe (Inc. 520i \u0026amp; 528i) - ML Performance US\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_480x480.png?v=1587752204\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":48679168475361,"sku":"A206NP","price":1022.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/7608\/4961\/files\/20170628040102_f6c2215a-1564-42be-bbb5-a1e07eeb8090.png?v=1784821367"},{"product_id":"scorpion-bmw-f20-f21-m140i-gpf-back-exhaust-with-electronic-valve","title":"Scorpion BMW F20 F21 M140i GPF-Back Exhaust with Electronic Valve","description":"\u003ch3 style=\"text-align: center;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eTrue tuning enthusiasts will be pleased to know the GPF-Back Exhaust with Electronic Valve has been designed from high-quality stainless steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAvailable with either Carbon Fibre 100mm Ascari trim or Polished 100mm Daytona trim tailpipe options \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou may be interested in purchasing the \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e?\u003cspan style=\"color: #2b00ff;\"\u003e\u003ca href=\"\/products\/scorpion-bmw-f20-f21-m140i-gpf-delete-pipe\" title=\"Scorpion BMW F20 F21 M140i GPF Delete Pipe\" style=\"color: #2b00ff; text-decoration: underline;\" target=\"_blank\"\u003eScorpion BMW F20 F21 M140i GPF Delete Pipe\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e?\u003c\/span\u003e? to complete your Scorpion Exhaust System.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Valve requires O.E motor. Original system requires cutting.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePipe Diameter: 80mm\/3.15\"\u003c\/li\u003e\n\u003cli\u003eFits To OEM \/ Scorpion\u003c\/li\u003e\n\u003cli\u003eWeight 10.9 kg (\u003cspan data-mce-fragment=\"1\"\u003e-4.6kg from OE)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eImproved Performance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuperior Engineering\u003c\/li\u003e\n\u003cli\u003eLifetime Warranty\u003c\/li\u003e\n\u003cli\u003eFitting Instructions Included\u003c\/li\u003e\n\u003cli\u003eBritish Manufactured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRear link pipe\u003c\/li\u003e\n\u003cli\u003eRear silencer\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eL\/H Trim connecting pipe with valve\u003c\/li\u003e\n\u003cli\u003eR\/H Trim connecting pipe\u003c\/li\u003e\n\u003cli\u003eCarbon fibre 100mm Ascari trim\/ \u003cspan data-mce-fragment=\"1\"\u003ePolished 100mm Daytona trim\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eFitting Kit\u003c\/li\u003e\n\u003cli\u003eFitting Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBMW 1 Series F20 F21 M140i (2018-2019) - GPF model \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003ca href=\"https:\/\/online.scorpion-exhausts.com\/index.php?route=product\/download\/download\u0026amp;did=8061\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Download_Installalation_Guide_2020_Aug_Cropped_2048x2048_684dfc76-81a5-4e18-aa46-74f77ac2afc9_2048x2048.jpg?v=1614262002\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eSBMS082CF (\u003cspan data-mce-fragment=\"1\"\u003eCarbon Fibre 100mm Ascari)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSBMS082 (Polished 100mm Daytona trim)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eScorpion\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLifetime Scorpion Warranty\u003c\/span\u003e\u003c\/p\u003e","brand":"Scorpion","offers":[{"title":"Carbon Fibre 100mm Ascari","offer_id":48680298873057,"sku":"SBMS082CF","price":1003.44,"currency_code":"USD","in_stock":true},{"title":"Polished 100mm Daytona","offer_id":48680298905825,"sku":"SBMS082","price":855.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/7608\/4961\/files\/ScorpionBMWF20F21M140iGPF-BackExhaustwithElectronicValve-1_7b3be6ab-b2dd-44cc-b55d-c81521ab8876.jpg?v=1784819947"},{"product_id":"scorpion-sbmc083-bmw-m135i-xdrive-f40-de-cat-downpipe","title":"Scorpion SBMC083 BMW M135i xDrive (F40) De-Cat Downpipe","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\u003cp\u003eThis is Scorpion SBMC083 De-Cat Downpipe for BMW M135i xDrive (F40) GPF model\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e:\u003c\/td\u003e\n\u003ctd\u003eDe-cat downpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits to\u003c\/td\u003e\n\u003ctd\u003e:\u003c\/td\u003e\n\u003ctd\u003eOEM \/ Scorpion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cdiv class=\"compatibility-accordion-wrapper\"\u003e\u003cdiv class=\"compatibility-tab\"\u003e\r\n      \u003cinput name=\"tabs\" type=\"checkbox\" id=\"compatibility-tab-1\"\u003e\r\n      \u003clabel for=\"compatibility-tab-1\"\u003e\u003cb\u003eBMW\u003c\/b\u003e\u003cbr\u003e\u003c\/label\u003e\r\n        \r\n      \u003cdiv class=\"compatibility-tab-content\"\u003e\u003cul\u003e\u003cli\u003eM135i xDrive (F40) GPF model (2020-2023)\u003c\/li\u003e\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003eCompatibility Check\u003c\/h4\u003e\u003cp\u003eTo ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your license plate or the last 7 digits of your VIN. Simply enter your car details prior to checkout.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003ePart Number\u003c\/h4\u003e\u003cp\u003eSCORPION-SBMC083\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003eMore Information\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eScorpion\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEAN\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e8486470714470\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Scorpion","offers":[{"title":"Default Title","offer_id":48680301920481,"sku":"SCORPION-SBMC083","price":371.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/7608\/4961\/files\/1URp2XJD9mg8SR3OV9VOhOndTwwprtZtv.jpg?v=1784837639"}],"url":"https:\/\/mlperformanceusa.com\/collections\/7-5-2025-blogpost-ecu-essentials-part-3.oembed","provider":"ML Performance USA","version":"1.0","type":"link"}