The Borla Stainless Steel Exhaust is one of the more popular systems for the 05-09 Subaru Legacy GT. The Borla Exhaust maintains a factory like appearance as opposed to common large canister mufflers, and the exhaust tone is crisp and strong. It features all the necessary hardware and clamps to bolt up to a stock or aftermarket downpipe, and is backed by the unbeatable Borla million mile warranty! We are a Borla distributor, contact us before purchasing if you find a lower price and we will match/beat it. Piping diameter is 2.5" at the midpipe connection and splits to 2.0" piping at the Y connection.