Bully Dog 52201 Rapid Flow Intake System (Non-CARB Compliant) Precision designed and tested for optimal cold air flow and decreased air turbulence Designed to pull air from cold air sources within the engine bay; Increased cold air is then fed to the engine, which in turn increases power Gives your engine bay a nice, sleek, custom finish Includes pre-oiled filter that is cleanable and reusable Quick and easy install achieved by snap on parts and easily assembled fittings