Exhaust Gasket

Constructed from durable fiber-reinforced graphite, this gasket offers superior sealing performance and is designed to be 100% thicker than the original equipment. It directly replaces Subaru part number 44022AA123, ensuring a precise fit for the intended applications. Fitment includes the 2002-2014 Subaru WRX, the 2004-2017 Subaru STI, and the 2005-2009 Subaru Legacy GT. Many consider GrimmSpeed their go-to brand for reliable gaskets. Installation is straightforward, as this gasket is designed as a direct replacement. It is backed by GrimmSpeed's Lifetime Warranty, providing assurance of its durability and performance. Replacing a faulty donut gasket is crucial for maintaining proper exhaust system integrity and preventing leaks, which can affect performance and sound. While the gasket itself is a direct fit, one review noted that when used with a specific adapter bracket (GrimmSpeed 2.5" to 3.0" adapter), it can cause a slight misalignment (approximately 1/2 inch) in dual exhaust tips, potentially making precise alignment difficult.