Cobb Tuning LGT catted downpipes are 3" bellmouth pipes that scale to the stock 2.5" size piping. These units are designed to bolt to any stock or 3" aftermarket catback exhaust. A factory style donut gasket attaches this downpipe to your catback. All Cobb WRX downpipes feature a unique cast bellmouth and an oxygen sensor bung close to the turbo that will come in handy at your Legacy GT dyno/tuning day.
Downpipes come with a plug for this bung when a sensor is not in use. All flanges, hangers, 02 sensor bungs, casting and piping are constructed 100% from TIG welded 304 stainless steel. High flow cat section is metallic. This is a 05-07 Legacy GT catted downpipe- no cattless options are offered. Downpipes kit Manual and Automatic Transsmision- please choose correctly below. JSC Speed is a Cobb Distributor; contact us before purchasing for price matching / beating.