This CNC machined plug and play adapter allows you to mount single or dual BMS Water/Methanol Injection (WMI) nozzles WITHOUT the expense and headache of removing and drilling your factory charge pipe. Shaves a ton of time off the Audi S4 WMI install and best of all is fully reversible. We suggest the BM10 nozzle for most S4 applications. Nozzles not included. Made in the USA.
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