One of the quietest catbacks for the WRX. Looks, performance and sleeper sound at a value price. Inherent in its name, the EVO2 cat-back exhaust system is a huge step forward. In addition to the GReddy straight-through technology, offset tip design and large piping diameters of the original EVO, the EVO2 is now offered in full stainless steel providing improved looks, durability and corrosion resistance while maintaining the best qualities of the original such as fitment, sound and performance.