Aeromotive Adjustable Regulator - 35-75PSI - .188 Valve - (2) -08 Inlets/-08 Return Gauges & Pods>Gauges Standard spring (installed) supports 30-75

Standard spring (installed) supports 30-75 PSI base fuel pressure

The air intake system comes with a replacement AEM high-flow air filter and a free-flowing aluminum intake tube that easily connects to your vehicle's factory air box and engine throttle body to dramatically increase air flow into your engine

View the 21-783C vehicle applications to determine the legal status for each vehicle

Quiet operation with increased strength and reliability

tuned and dyno-tested to fit specific Nissan Altima models

Aeromotive Adjustable Regulator - 35-75PSI - .188 Valve - (2) -08 Inlets/-08 Return Gauges & Pods>Gauges Standard spring (installed) supports 30-75Replace original X1 Series regulator internals with the conversion kit of your choice (Part #'s 13013, 13014, and 13015) and you have a regulator with vastly different characteristics. While versatility is one of the X1's greatest assets, it is far from the only new design feature. Utilizing larger (3) 8AN ORB inlet outlet return ports to accommodate increased flow, at the same time Aeromotive reduced overall size and the weight by 33% (compared to