Ramair Performance Foam Replacement Air Filter for Ford Focus ST RS Clearance25 meaning the ECU will automatically

meaning the ECU will automatically adjust your map based on the ethanol content of the fuel that's put in

Tapered Hi-Velocity CNC Billet Intake Runners

the Y-pipe kit ensures optimal flow dynamics for maximum performance

Performance Gain (Dyno): 8-10hp

Ramair Performance Foam Replacement Air Filter for Ford Focus ST RS Clearance25 meaning the ECU will automaticallyThis is a replacement panel filter for the Ford Focus, Volvo and Mazda. For a full list of fitments see compatibility chart. Features High Performance, MAF Safe, twin layer, fully reticulated foam Fits in the OEM Airbox and replaces inefficient paper filter Easy to clean using our filter maintenance kit CK 003 Stainless steel cage support structure Guaranteed surface area using high quality custom blended polymer What Does It Do? The Ramair Panel