The COBB 3-inch catback exhaust for the Ford Focus ST is a direct-fit replacement exhaust system sized with 3-inch piping to upgrade the factory backbox and exhaust routing. Intended for straightforward installation on Focus ST models, it offers improved flow characteristics and a finished appearance while retaining the factory exhaust geometry and mounting locations for a hassle-minimized fit.
Cobb Ford Focus ST SS 3in Catback Exhaust