HKS Super Turbo Catback Exhaust 2004-2007 STI

Upgrade your 2004-2007 Subaru WRX STI with the HKS Super Turbo Catback Exhaust, designed to enhance both performance and sound quality. This premium catback system improves exhaust flow efficiency while delivering a balanced, sporty tone that appeals to enthusiasts seeking a refined yet aggressive exhaust note.

Crafted from durable 304 stainless steel, the exhaust features a 124mm burnt tip and maintains a moderate 91-decibel sound level that complies with JASMA standards. It’s engineered specifically for turbocharged engines and works effectively on both stock and high-performance setups with upgraded turbines. Please note that some configurations may require an OEM downpipe to 3-inch catback adapter for proper installation.

Ideal for Subaru WRX STI owners who want a trusted, high-quality exhaust upgrade, the HKS Super Turbo Catback Exhaust offers a unique sound tailored to your turbocharged engine.