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Ignition

Your BMW's ignition system is critical for smooth engine operation. This category contains parts used in the BMW ignition system, including spark plugs, ignition coils, spark plug wires and boots, ignition rotors and caps, distributors and distributor caps. On most 1991 and later model BMWs, your car has what's known as a coil-on-plug system, where each cylinder has its own ignition coil that sits directly atop the spark plug (so you won't have spark plug wires on those BMWs.) A fresh set of spark plugs is an essential part of any BMW engine tune up.

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Blue B58 BMW Coil Upgrade Adapter Kit - N55

T#:49857415

Part#: BMSN55CUAK

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$ 199.00 USD

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$ 199.00 USD

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Upgrade your N55 ignition system with the N55 → B58 Coil Upgrade Adapter Kit, engineered for a seamless, plug-and-play conversion. This kit lets you run modern B58-style pencil coils on your N55 without modifying the factory harness or compromising valve cover integrity. Why Upgrade: While the N55 is a reliable platform, factory coils can struggle under high boost, heat, and load. B58 coils deliver stronger, more consistent spark, and this adapter kit ensures a clean, OEM-quality integration. Features & Benefits: Direct-fit adapter harness & mounts for straightforward B58 coil installation Plug-and-play design — no cutting, splicing, or permanent modifications Secure coil seating & alignment for consistent performance and reliability Improved ignition stability under high-load or tuned conditions, helping reduce misfires Applications: Stage 1–3 N55 builds, turbo upgrades, ethanol blends, track use, and aggressive daily driving Drivers looking to eliminate heat- and boost-related ignition issues Anyone seeking an OEM+ quality coil upgrade without a messy DIY install Result: A clean, professional installation that modernizes your ignition system and delivers reliable spark performance under all conditions. If you provide the kit’s brand/part number and whether your valve cover is stock or aftermarket, I can refine this description for precise fitment and application.

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Blue B58 BMW Coil Upgrade Adapter Kit - N54

T#:49857414

Part#: BMSN54CUAK

Ships on Aug 31, 2026

$ 199.00 USD

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$ 199.00 USD

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Modernize your N54 ignition system with this N54 to B58 Coil Upgrade Adapter Kit, engineered to deliver an OEM-quality conversion for improved spark energy and consistency. Designed to pair B58-style pencil coils with the factory N54 engine harness, this kit provides a clean, reversible installation—no cutting, splicing, or guesswork required. Key Features & Benefits: Direct-fit adapter solution to run B58 coils on N54 applications Plug-and-play wiring integrates with the factory N54 harness for a factory-like install Secure coil positioning helps ensure proper seating and reliable long-term fitment Improved ignition stability under higher cylinder pressures—ideal for tuned, higher-boost setups Clean, serviceable conversion that maintains a tidy engine bay and simplifies future maintenance Ideal For: Stock to heavily modified N54 builds Vehicles running elevated boost, ethanol blends, or upgraded turbo systems Owners looking to reduce ignition-related misfires and improve combustion consistency under load If you share the brand/part number of the kit and which coils you’re pairing it with, I can tailor the write-up to match the exact components and fitment notes.

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Vargas N54 To B58 Coil Conversion Kit

T#:7292057

Part#: VTT-N54-B58-CNV

Ships in 10 Business Days

Sale - Save 5% $ 677.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 641.87 USD

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Sale - Save 5%

$ 677.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 641.87 USD

Add to Wish List

VTT is proud to offer its very own N54 to B58 Coil conversion kit for the N54 platform. While factory coil upgrades such as S55, and our own N54 coil upgrades do provide more spark, the BMW B58 ignition coils are extremely robust and can support well over 1000whp with no issues. This means a plug, and play affordable solution that fits like stock, and looks AMAZING doing so! Vargas's 6061-T6 Billet bracket comes in a variety of colors including matching shades for every N54 Valve Cover we offer (even the cast wrinkle). This means you can mix and match the color of the bracket with coil color, with VC color to truly tailor your engine bay to look exactly how you want it to! The kit comes with the following: 1 – Billet Aluminum Coil Bracket in the color of choice or Genuine Carbon Fiber 6 – Plug and play VTT wiring harnesses 6 – Custom VTT stalks to convert the B58 coils to the N54 head (We ensure proper spring length inside the boot for optimal spring to plug contact) 6 – Coils in the color of choice (optional) **Note: This only fits the stock N54 Valve covers or Vargas Billet and Cast Valve Covers.

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