BMW Ignition Coils

B58 Ignition Coil Upgrade Adapter Kit - N55/S55

Not forsale in the state of California!

T#:6811828

Part#: ICU-NS55-N5-PL

Ships on Sep 4, 2026

$ 299.99 USD

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$ 299.99 USD

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Does not include ignition coils. To mount the B58 coils onto the N55 & S55 engine the folks at Nexsys developed billet aluminum brackets that are Made in the USA.

B58 Ignition Coil Upgrade Adapter Kit - N55

Not for sale in the state of California!

T#:6811852

Part#: B58COILPNPN55

Ships on Sep 4, 2026

Sale - Save 7% $ 515.99

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

Starting at $ 479.93 USD

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Sale - Save 7%

$ 515.99

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

Starting at $ 479.93 USD

Add to Wish List

B58 coils are capable of producing 2.3x the energy output while providing a longer spark duration than the Precision Raceworks N55 coils.

B58 Ignition Coil Upgrade Adapter Kit - Black Anodized - N54 Stock Va...

T#:6811848

Part#: N54-STVTT-BL-ST-

Ships in 4 Business Days

$ 359.99 USD

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$ 359.99 USD

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Does not include ignition coils - B58 coils are capable of producing 2.3x the energy output while providing a longer spark duration

B58 Ignition Coil Upgrade Adapter Kit - N54

T#:6827867

Part#: B58COILPNPN54

Ships in 3 Business Days

Sale - Save 5% $ 688.99

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

Starting at $ 655.92 USD

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Sale - Save 5%

$ 688.99

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

Starting at $ 655.92 USD

Add to Wish List

Includes ignition coils - B58 coils are capable of producing 2.3x the energy output while providing a longer spark duration

Red B58 BMW Coil Upgrade Adapter Kit - N55

T#:57086690

Part#: BMSN55CUAK-R

Ships on Sep 1, 2026

$ 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.

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Blue B58 BMW Coil Upgrade Adapter Kit - N55

T#:49857415

Part#: BMSN55CUAK

Back Ordered

$ 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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Mishimoto Ignition Coil - Single - BMW M54, N20, N52, N55, N62, N63, ...

T#:51110138

Part#: MMIG-BMW-07

Ships in 3 Business Days

$ 41.99 USD

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$ 41.99 USD

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Mishimoto’s Delphi-style ignition coils offer a premium solution for BMW owners looking to replace worn-out factory units.

Blue B58 BMW Coil Upgrade Adapter Kit - N54

T#:49857414

Part#: BMSN54CUAK

Ships on Sep 1, 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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