A performance-focused muffler kit that cuts flow resistance by roughly 29% compared with the standard part, lowering back pressure. Thorough back-pressure and sound tuning deliver the responsiveness and the sporty, pleasant note that suit the character of a naturally aspirated boxer engine. The dual centre exhaust layout combined with the dedicated garnish gives the exterior a distinctly sportier look. Ø70 mm tailpipes, dual centre exit, engraved with the STI logo.

※ The listed price is the manufacturer's suggested retail price and does not include installation.
※ The kit contains the muffler itself and the garnish. Installation requires cutting the rear bumper.
※ Compared with the previous part number STPKG40G2001 the muffler garnish has been partially changed. This does not affect the muffler itself or the appearance of the garnish.
※ The following genuine SUBARU parts are required separately: flange bolt (010510307) × 2, self-locking nut (902330011) × 2, gasket (44011SG000) × 1.
※ 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).
※ Delivery may take additional time if the item is out of stock.