An all-stainless muffler with a buffed finish. It uses double-wall slash-cut tailpipes (Ø101.6 mm per side) while cutting mass by roughly 20% against the standard part. A muffler structure optimised for the strong hybrid powertrain delivers a sporty yet comfortable note and a sense of unity with the car. STI's own design has no adverse effect on the power unit, giving a safe and dependable structure.

※ The listed price is the manufacturer's suggested retail price excluding installation (prices in the catalogue and on the SUBARU website include standard labour and therefore differ).
※ Installation additionally requires genuine SUBARU parts: gasket (44011SG000) × 1, self-locking nut (902330011) × 2.
※ When orders are heavy, delivery can take several months.
※ Complies with safety standards and has passed type-1 replacement silencer performance testing (certified under the Japanese Ministry of Land, Infrastructure and Transport pre-certification scheme for replacement mufflers).