
They come in three major variants: Spec C, Spec C Aero (2009-2011), Legacy GT Spec B. These two components make the STI performance exhaust. The catback, which includes the main section of pipe beyond the cat and muffler, and the mid-pipe, which is the smallest section of piping between the headers (or downpipe) to the midsection in front of the cat (muffler). The oversized stainless-steel muffler and tailpipes produce a throaty, deep sound that will turn heads wherever you go… It’s an exclusive, catalytic converter-less system that delivers all of the performance without the drone. The Subaru STI Performance Exhaust is backed by a limited lifetime warranty, making it a highly desirable add-on for Subaru STI owners. As an established manufacturer of performance cars, Subaru offers some of the best performance exhaust systems on the market, especially if you want a system direct from the manufacturer. There are as many options for performance exhausts as there are models of performance cars, so it’s vital that you pick the right exhaust for your vehicle if you want the best results. With all the optional extras available, many people wonder if the STI performance exhaust is worth it, or whether you should just stay with the stock exhaust… Best Performance Exhaust Systems The Subaru Impreza WRX STI is a high-performance car with plenty of bells and whistles to satisfy gearheads without sacrificing comfort.

The smooth driving characteristics of Subaru put them above many other high-end sport saloon cars with their trademark boxer rumble, yet the ride remains as gentle as a luxury car.

These cars have been game-changers in terms of overall performance – especially torque and power – pushing STI performance even further. Subaru first introduced the 2.5-liter turbocharged Boxer engine in 1988, but it has been going from strength to strength, powering some of the best all-weather cars, the WRX and STI.
