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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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B58 Ignition Coil Upgrade Adapter Kit - N55/S55

Not forsale in the state of California!

T#:6811828

Part#: ICU-NS55-N5-PL

Ships on Oct 27, 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.

BMW B58 Ignition Coil Upgrade Adapter Kit - Raw - N54

T#:6811830

Part#: N54-STVTT-RA-ST-

In Stock

$ 349.99 USD

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$ 349.99 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 - N55

Not for sale in the state of California!

T#:6811852

Part#: B58COILPNPN55

Ships on Oct 27, 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.

Billet Spark Plug Gapper Tool - 14mm - BMS

T#:583132

Part#: BMSBSPGT14MM

Ships in 7 Business Days

$ 35.00 USD

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$ 35.00 USD

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BMS Billet Spark Plug Gapper Tool - 14mm is an essential tool for achieving accurate and consistent spark plug gapping, ideal for automotive enthusiasts and professional mechanics alike. This precision tool helps maintain optimal plug performance by providing reliable, consistent gaps. Available in both 14mm and 12mm plug thread sizes, this tool is proudly made in the USA to deliver durability and precision.

Precisely gaps spark plugs for enhanced engine performance and efficiency
Speeds up the gapping process while ensuring accuracy and uniformity
Available in two sizes (14mm and 12mm) for a wider range of compatibility
Optional specialty feeler gauge included with 4 blades in thicknesses of .018, .020, .022, and .024
Made in the USA for premium quality and durability

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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

In Stock

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

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 Oct 27, 2026

$ 199.00 USD

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$ 199.00 USD

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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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Blue B58 BMW Coil Upgrade Adapter Kit - N54

T#:49857414

Part#: BMSN54CUAK

Ships on Oct 27, 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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Ignition

Sub-Categories

B58 Ignition Coil Upgrade Adapter Kit - N55/S55

BMW B58 Ignition Coil Upgrade Adapter Kit - Raw - N54

B58 Ignition Coil Upgrade Adapter Kit - N55

Billet Spark Plug Gapper Tool - 14mm - BMS

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

B58 Ignition Coil Upgrade Adapter Kit - N54

Red B58 BMW Coil Upgrade Adapter Kit - N55

Blue B58 BMW Coil Upgrade Adapter Kit - N55

Blue B58 BMW Coil Upgrade Adapter Kit - N54

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