Subaru WRX Performance Exhaust - HKS - Hiper - 02-07. A purpose-built HKS Hiper cat-back exhaust for Subaru enthusiasts seeking a more focused sound and improved exhaust flow without extensive modification.

This HKS Hiper system is designed as a direct-fit replacement for the factory rear section on 2002–2007 WRX models and is also compatible with 2004–2007 WRX STI. It offers a deeper, sportier tone under throttle, reduced backpressure for more responsive engine feel, and durable construction intended for road use and spirited driving. The finish and hanger locations match factory points to simplify installation and reduce the need for fabrication.

Features

• Direct-fit cat-back design for 2002–2007 WRX (fits 2004–2007 STI)
• Engineered for improved exhaust flow and throttle response
• Performance-oriented tone without excessive drone
• Durable construction and factory-style hangers for easier fitment

For enthusiasts who want a factory-friendly performance upgrade, this HKS Hiper exhaust provides a practical balance of sound, durability, and fitment. It’s well-suited for street-driven WRX owners who plan occasional track use and want a recognizable, refined note from their Subaru.

If you have questions or want fitment confirmation, call us directly — we’re happy to help: 512-982-9393 (TX) or 562-981-6800 (CA). We have installation and customization services at two locations: Austin, Texas and the Los Angeles, California area.

If you’re considering purchasing multiple items, contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov