{"product_id":"jb4-ewg-add-on-connector-harness-n55-b58","title":"JB4 EWG Add-On Connector Harness N55 B58","description":"The Burger Motorsports (BMS) JB4 EWG Add-On Connector Harness is engineered to unlock precise boost control for BMW F Series N55 and B58 engines equipped with an electronic wastegate. This plug-in accessory for the JB4 tuner allows direct control of the electronic wastegate, which is crucial for raising the boost ceiling on significantly modified cars. It is particularly beneficial when running upgrades such as E85 ethanol blends or water\/meth injection systems.\n\nThis harness is recommended for BMW M135i, M140i, M240i, and 335i models. Customers have reported improved drivability, sharper response, better boost management, and a reduction in boost creep and throttle closure, especially with freer-flowing exhausts. The connector is designed for use with JB4 Map 3 and above; it is not used on Map 1 or Map 2 even if installed. For B58 engines using E85, small blends of 10-20% are recommended, as higher ethanol content may reduce the DME's internal boost target due to the fuel cap.\n\nCompatibility is specific to 2014+ F Series BMW N55 and B58 engines that have an electronic wastegate and are already equipped with a JB4 tuner. If you are unsure about your vehicle's wastegate type, visual identification guides are available, or you can contact the seller for assistance. Professional installation and setup services are offered by Nforcd in Warwickshire. To ensure correct fitment, a compatibility check is performed before dispatch; customers are asked to provide their UK registration number or the last 7 digits of their VIN at checkout.","brand":"BURGER MOTORSPORTS","offers":[{"title":"Default Title","offer_id":52687323922744,"sku":"JB4_EWG","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660191039.webp?v=1784882686","url":"https:\/\/store.motormia.co\/products\/jb4-ewg-add-on-connector-harness-n55-b58","provider":"MOTORMIA","version":"1.0","type":"link"}