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Description
This is an all-stainless steel muffler with a buffed finish.
While adopting a dual-structure slash-cut tail pipe (φ101.6mm on one side), it achieves approximately 20% weight reduction compared to the standard specification. By adopting a muffler structure optimal for the strong hybrid, it realizes a sporty yet comfortable sound and provides a sense of unity with the vehicle.
With STI's original design, it adopts a safe and secure structure that does not affect the power unit.
* The prices listed on this page are manufacturer's suggested retail prices excluding labor charges. (Prices listed in catalogs and on SUBARU Corporation's website include standard labor charges, so they differ from the above prices.)
* Installation separately requires SUBARU genuine parts: gasket (44011SG000) x 1 and self-locking nut (902330011) x 2.
* Safety standards compliance and Type 1 aftermarket silencer performance confirmed
(Ministry of Land, Infrastructure, Transport and Tourism replacement muffler pre-certification system certified product)
* If orders are concentrated, it may take several months for delivery. Please understand in advance.
While adopting a dual-structure slash-cut tail pipe (φ101.6mm on one side), it achieves approximately 20% weight reduction compared to the standard specification. By adopting a muffler structure optimal for the strong hybrid, it realizes a sporty yet comfortable sound and provides a sense of unity with the vehicle.
With STI's original design, it adopts a safe and secure structure that does not affect the power unit.
* The prices listed on this page are manufacturer's suggested retail prices excluding labor charges. (Prices listed in catalogs and on SUBARU Corporation's website include standard labor charges, so they differ from the above prices.)
* Installation separately requires SUBARU genuine parts: gasket (44011SG000) x 1 and self-locking nut (902330011) x 2.
* Safety standards compliance and Type 1 aftermarket silencer performance confirmed
(Ministry of Land, Infrastructure, Transport and Tourism replacement muffler pre-certification system certified product)
* If orders are concentrated, it may take several months for delivery. Please understand in advance.
STI Performance Muffler (SHEV) ST44309S2001
SKU: ST44309S2001
To Order
This product may be discontinued. Please contact us to confirm availability.
- Publication date
- Manufacturer price when added
- The original price was not recorded
This is the historical manufacturer price, excluding our markup and shipping. The current selling price is shown on the product page.
Source ↗
$1,381
This item is shipped from Japan on order. Delivery takes 2 to 4 weeks. Shipping cost is calculated separately.
The price shown is for the product only. Our manager will inform you of the shipping cost after placing your order.
Specifications
Fitment: FORESTER (SL)
Applied model code B | from 2025-04
Supported: X-BREAK S:HEV(AWD/CVT); X-BREAK S:HEV EX(AWD/CVT); Premium S:HEV(AWD/CVT); Premium S:HEV EX(AWD/CVT)
Not confirmed in the manufacturer table: SPORT(AWD/CVT); SPORT EX(AWD/CVT); SPORT Black Selection(AWD/CVT); SPORT EX Black Selection(AWD/CVT)
Applied model code C | from 2026-05
Supported: X-BREAK S:HEV(AWD/CVT); X-BREAK S:HEV EX(AWD/CVT); Premium S:HEV EX(AWD/CVT)
Not confirmed in the manufacturer table: Touring(AWD/CVT); Touring EX(AWD/CVT); SPORT EX(AWD/CVT); SPORT EX Black Selection(AWD/CVT)
Restrictions and contents:
Only S:HEV (strong hybrid), in the grades confirmed in the table. Fitment for SPORT, Touring and other rows without the confirm marker is not confirmed; absence of this marker alone does not establish incompatibility.
All stainless steel with a buffed finish. Double-wall, slash-cut tailpipes: φ101.6 mm on each side. Approximately 20% lighter than the standard muffler.
Installation additionally requires genuine SUBARU gasket 44011SG000 ×1 and self-locking nuts 902330011 ×2, obtained separately.
Complies with Japanese safety standards and has passed the Class 1 aftermarket silencer performance check; approved under Japan’s MLIT replacement-muffler advance certification system. This does not establish certification in other countries.
If orders surge, delivery may take several months; the manufacturer does not promise immediate availability.
The manufacturer’s stated price excludes installation labour.
Dates are the STI table’s vehicle revision applicability periods, not the part’s release dates. Source periods and grade names are preserved; fitment outside the table is not claimed.
Not confirmed means the parser found no confirm class on that official table row. This is not an explicit manufacturer statement of incompatibility.
Category:
Exhaust Systems
Performance Muffler (SHEV)
$1,381