These Pro-Series Boost Reference EFI regulators from Aeromotive are designed to deliver enough flow to support a whopping 2,000 hp! They're perfect if your application requires one or even two Pro-Series pumps. They feature two CNC-machined stainless steel fittings so that you can reference boost, and they have extra ports available for pressure gauges and transducers. These regulators include Aeromotive's exclusive AN cutoff tapered flare fittings, O-rings, and port plugs.