AirDog II-4G Fuel Air Separation System DF-165-4G Engine and Performance_Engine Parts AEM's Water/Methanol Injection Systems utilize

AEM's Water/Methanol Injection Systems utilize the most robust hardware combined with more advanced features than any other comparable water/methanol system on the market today

A 304 stainless steel band clamp ensures a very secure grip

The aFe 409 stainless steel wrinkle black powder-coated exhaust tip is designed to fit 4" exhaust systems

With a 4" inlet

AirDog II-4G Fuel Air Separation System DF-165-4G Engine and Performance_Engine Parts AEM's Water/Methanol Injection Systems utilizeAirDog A6SPBF387 AirDog A6SABF488 The next generation in the fuel delivery system. The patented AirDog II 4G has been quality engineered to remove entrained air and water vapor from diesel fuel. The result is a compact, long lasting, efficient, and quiet fuel system made with superior quality. The AirDog II 4G system improves engine performance by: Maintaining Correct Injection Timing Eliminating Spray Pattern Disruption Allowing for a Full Power