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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If you're already using our Stage 2 Bucketless LPFP and want to upgrade to Stage 3, this kit is for you. If you don’t have the Stage 2 kit, you can purchase it here. Note: Stage 3 requires the Stage 2 bucketless kit. The Stage 3 upgrade kit includes: - Complete plug-and-play solution with the addition of the secondary module - Custom billet aluminum fitting to run both pumps in parallel - Wiring harness for the secondary pump - Spare vent tube clip - New Walbro filter - New E85-compatible Walbro 450 pump (F90000274) - Optional upgrade to Walbro 525 pump (F90000285) Recommended accessories: - Lock Ring Removal Tool - Hobb's switch
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This solenoid safely stops fluid from flowing into your intake system when WMI is not in use. The solenoid features two 1/8 NPT ports with included compression 1/4 in. hose fittings for a quick leak-free connection. The included filter keeps dirt and debris out of your engine.
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This heavy duty methanol/water injection filter is specifically designed for a methanol/water system can filter particles down to 40 microns in size. It safeguards the functional components of the water/methanol system as well as your engine from particulates present in the water/methanol mixture.
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Includes a programmed chip and wiring harness to allow on-the-fly anti-lag. Select a gear, hold down the volume button, floor the car, and once boost has built up release the volume button to instantly take off under full boost. Absolute must-have for rolling races of any transmission type and works well for automatics off the line too. Requires a BMS back end flash map and ethanol fuel is strongly suggested.
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With CNC machined serviceable/cleanable nozzle inserts for precise fluid metering. Choose single or dual nozzles and match the flow rate to your power needs! Water/Methanol Injection (WMI) nozzles are determined by the intended power and how many bungs your charge pipe has. These nozzles are 1/8” NPT and screw in to bungs included on most aftermarket charge pipes. BMS "super atomizing" nozzles are designed and manufactured by BMS and are known for their great atomization and flow characteristics. The number on the methanol injection nozzle represents the approximate gallons per hour of fluid when at full flow. Generally speaking running two smaller nozzles is preferred to one larger nozzle for an equal flow to improve fluid atomization and distribution.
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