{"product_id":"nexsys-motorsport-bmw-n54-ignition-coil-upgrade-kit-inc-1m-135i-335i-z4","title":"Nexsys Motorsport BMW N54 B58 Coil Conversion Ignition Upgrade Kit – 1M, 135i, 335i, Z4 35i – Billet Bracket + Boots, Plug \u0026 Play Harness Option – Stock\/VTT Valve Cover – B58 Coils Not Included","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eNexsys Motorsport N54 to B58 Coil Pack Conversion Kit for BMW E82 1M, E82 E88 135i, E90 E91 E92 E93 335i, E89 Z4 35i\u003c\/h2\u003e\n\n  \u003cp\u003e\n    End misfires and spark blow out on your tuned N54. This premium Nexsys Motorsport coil pack conversion swaps your older N54 ignition setup to the newer B58 style coils for a cleaner burn, stronger ignition energy and confidence at higher boost. Perfect for remapped street cars, hybrid turbos and track builds that demand reliable spark delivery. Designed to work with the factory N54 cam cover or the Vargas Turbo valve cover. If you run an M18 Performance cover, use the dedicated M18 version.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Note: B58 coils are not supplied. This package provides the CNC machined aluminium hold-down rail, extended boots, fasteners and your choice of wiring solution to mount and connect B58 coils neatly on the N54.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhy enthusiasts choose this conversion\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHigher coil energy for a more authoritative spark under load and at elevated boost\u003c\/li\u003e\n    \u003cli\u003eLonger discharge time for improved combustion stability on performance builds\u003c\/li\u003e\n    \u003cli\u003eDirect per-cylinder mounting keeps the bay tidy and removes bulky external leads\u003c\/li\u003e\n    \u003cli\u003eExcellent clearance for top mount single turbo and hybrid twin setups\u003c\/li\u003e\n    \u003cli\u003eFactory engine cover refits for an OEM look\u003c\/li\u003e\n    \u003cli\u003eLightweight assembly around 3.9 lb with coils installed, lighter than many alternatives\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    We have fitted this kit to our own shop cars and many customer vehicles with fantastic results. Feedback is consistently positive: cleaner idle, crisp throttle response and rock solid ignition at high RPM. The machining quality is spot on and the finished install looks factory fresh.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eMade in the USA billet aluminium coil rail with precision fitment\u003c\/li\u003e\n    \u003cli\u003e6 extended ignition boots for use with the OE or VTT cam cover\u003c\/li\u003e\n    \u003cli\u003eAll required stainless hardware\u003c\/li\u003e\n    \u003cli\u003eWiring options:\n      \u003cul\u003e\n        \u003cli\u003ePlug-in adapter loom for a true drop-in hookup, USA made connectors\u003c\/li\u003e\n        \u003cli\u003eConnector and terminal set only for those building their own loom\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    The coil rail features tidy pass-throughs for the loom and smooth edges for a professional finish. With coils in place the assembly weighs approximately 3.9 lb.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n  \u003cp\u003eFor BMW models equipped with the N54 engine:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eE82 1M\u003c\/li\u003e\n    \u003cli\u003eE82 E88 135i\u003c\/li\u003e\n    \u003cli\u003eE90 E91 E92 E93 335i\u003c\/li\u003e\n    \u003cli\u003eE89 Z4 sDrive35i\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\n    Compatible with the stock BMW N54 valve cover or the Vargas Turbo valve cover. For M18 Performance valve covers please select the M18 specific kit.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eImportant\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eB58 ignition coils are not included\u003c\/li\u003e\n    \u003cli\u003eSpark plugs and coil gap should suit your power level and fuel blend\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eProfessional fitting\u003c\/h3\u003e\n  \u003cp\u003e\n    Want it installed properly the first time? Book our in-house fitting service at MJ Modifications in Warwickshire. Email for a quote: \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility check before dispatch\u003c\/h3\u003e\n  \u003cp\u003e\n    To make sure you receive the correct variant, we will verify compatibility before shipping. Please provide your UK registration or the last 7 digits of your VIN at checkout.\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePart numbers\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-RA-ST-PL-1  Raw Aluminium, Stock Valve Cover, Plug-in Harness Kit\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-BL-ST-PL-1  Black Anodised, Stock Valve Cover, Plug-in Harness Kit\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-RA-VT-PL    Raw Aluminium, VTT Valve Cover, Plug-in Harness Kit\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-BL-VT-PL    Black Anodised, VTT Valve Cover, Plug-in Harness Kit\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-RA-ST-CO-1  Raw Aluminium, Stock Valve Cover, Connectors and Terminals Only\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-BL-ST-CO-1  Black Anodised, Stock Valve Cover, Connectors and Terminals Only\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-RA-VT-CO    Raw Aluminium, VTT Valve Cover, Connectors and Terminals Only\u003c\/li\u003e\n    \u003cli\u003eNXM-ICU-N54-STVTT-BL-VT-CO    Black Anodised, VTT Valve Cover, Connectors and Terminals Only\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMade by\u003c\/h3\u003e\n  \u003cp\u003eNexsys Motorsport\u003c\/p\u003e\n\n  \u003ch3\u003eSearch-friendly terms customers use\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW N54 coil pack upgrade, B58 coil pack on N54, misfire fix N54, spark blow out N54 solution, BMW 335i ignition packs, BMW 135i coil pack conversion, E90 335i ignition upgrade, E82 1M coil packs, Z4 35i ignition system, E-series BMW coil bracket, billet aluminium coil rail, N54 high boost ignition, tuned N54 ignition packs, drop-in ignition harness N54, adapter loom N54 to B58 coils, cam cover compatible coil kit, top mount turbo coil clearance N54, Vargas valve cover coil rail, stock cam cover ignition upgrade, performance coil conversion BMW N54.\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePhotos\u003c\/h3\u003e\n  \u003cp\u003e\n    \u003cimg alt=\"Nexsys Motorsport N54 to B58 Coil Conversion Kit - Bracket and Boots\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Nexsys_Motorsport_BMW_N54_Ignition_Coil_Upgrade_Kit_Inc._1M_135i_335i_Z4_-2_2048x2048.jpg?v=1660643441\"\u003e\n    \u003cimg alt=\"N54 B58 Coil Conversion - Coil Rail and Hardware\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Nexsys_Motorsport_BMW_N54_Ignition_Coil_Upgrade_Kit_Inc._1M_135i_335i_Z4_-3_2048x2048.jpg?v=1660643446\"\u003e\n    \u003cimg alt=\"BMW N54 Ignition Upgrade - Harness Option\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Nexsys_Motorsport_BMW_N54_Ignition_Coil_Upgrade_Kit_Inc._1M_135i_335i_Z4_-4_2048x2048.jpg?v=1660643453\"\u003e\n    \u003cimg alt=\"Nexsys Motorsport Coil Pack Conversion - Engine Bay View\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Nexsys_Motorsport_BMW_N54_Ignition_Coil_Upgrade_Kit_Inc._1M_135i_335i_Z4_-5_2048x2048.jpg?v=1660643460\"\u003e\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Nexsys Motorsport","offers":[{"title":"Raw Aluminium \/ Stock Valve Cover \/ Plug \u0026 Play Harness Kit","offer_id":56008710193538,"sku":null,"price":373.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/NexsysMotorsportBMWN54IgnitionCoilUpgradeKit_Inc.1M_135i_335i_Z4_-1_1946x_f1e0bfd2-3677-43ac-b0e1-ef739f0bf227.webp?v=1764091162","url":"https:\/\/mjmodifications.co.uk\/products\/nexsys-motorsport-bmw-n54-ignition-coil-upgrade-kit-inc-1m-135i-335i-z4","provider":"MJ Modifications","version":"1.0","type":"link"}