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N55 & S55 Ignition Coil Upgrade Kit

N55 & S55 Ignition Coil Upgrade Kit

Regular price $299.99 USD
Regular price Sale price $299.99 USD
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This kit is for BMW N55 & S55 engines.

Check out our ignition coil testing methods and results here!

Compared to the stock N55 and S55 ignition coils the B58 coils are capable of producing 2.3x the energy outputwhile providing a longer spark duration than the Precision Raceworks N55 coils. The B58 coils are a coil on plug design that removes the need for additional spark plug wires and utilizes the same mounting location as the stock coils providing excellent clearance for top mount turbo setups. To mount the B58 coils onto the N55 & S55 engine we've developed billet aluminum brackets that are Made in the USA. Our N55 & S55 Ignition Coil Kit with coils fitted weighs only 3.0 lbs. That's over 50% less than the Precision Raceworks kit. To make installation easier we've designed plug and play connectors that are made of nylon and Made in the USA. This kit comes with new ignition coil boots that are longer than the stock boots. The stock engine cover does fit with this kit.

  • 3 x Made in the USA billet aluminum coil brackets
  • 6 x Ignition coil boots
  • Plug & Play Connector harness made and assembled in the USA (if selected above for purchase)


Our kit now fit all N55 & S55 engines including the early E-series cars.

NOTE: KITS DO NOT COME WITH B58 COILS, you will need to provide those yourself. The B58 ignition coils (OE Part #'s: 12138643360, 12138678438, 12138647463, 12137619385) are typically $36 - 42/each and are available from FCP Euro with their lifetime warranty. If you're feeling cheap I've seen sets of used coils on ebay/forums for around $150.

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