Cobb Tuning Catted Downpipe 2008-12 WRX / STI /2005-09 LGt

Cobb Tuning's catted downpipe uses a 3" bellmouth that scales to the stock 2.5" size piping where it connects to the mid-pipe. The Cobb downpipe is designed to bolt to any stock or 3" aftermarket catback exhaust. A factory style donut gasket attaches this downpipe to your catback. All Cobb downpipes feature a unique, cast bellmouth and an oxygen sensor bung close to the turbo that will come in handy when you want to run on the dyno with a dedicated wideband sensor.