Airaid 99-01 Ford Mustang 3.8L PowerAid TB Spacer bmw High Quality Tube:This system uses

High Quality Tube:This system uses a high quality

7in usable stroke

The Scorpion Aluminized Hi-Tuck "Rock Basher" (RB) Cat-Back Exhaust System is constructed of 2-1/2" mandrel-bent aluminized steel tubing

This cylindrical filter has a large oval (6-3/4" x 4-3/4") flange and is 7" tall inverted top Pro DRY S filter media

Airaid 99-01 Ford Mustang 3.8L PowerAid TB Spacer bmw High Quality Tube:This system usesThe POWERAID Throttle Body Spacer is designed to enhance off idle torque from 800 rpm to approximately 3,000 rpm. The spacer utilizes it's unique, patented Helix Bore design to spin the incoming air charge as it passes through the throttle body spacer. The spinning air action boosts the velocity of the incoming air and contributes to better atomization of the air fuel mixture as the air charge enters the combustion chamber. The end result is more part