AirDog II-4G Fuel Air Separation System DF-165-4G Engine and Performance_Engine Parts The aFe 409 stainless steel

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

Raptor & Other Custom Fuel Systems

This pipe is constructed out of aluminized steel and is used to eliminate the 4" In/Out muffler used in most factory or performance 4" exhaust systems

AirDog A4SPBC088

Old Part # R2SBF218 / R2SBF221

AirDog II-4G Fuel Air Separation System DF-165-4G Engine and Performance_Engine Parts The aFe 409 stainless steelAirDog 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