HKS Hi-Power SPEC-R Exhaust - Subaru WRX STI 04-07

This full-fledged sports muffler showcases HKS's aggressive design philosophy, excelling in every aspect from sound and layout to exhaust performance and meticulous craftsmanship. As the top-tier model in sports mufflers, it adheres to JASMA standards while featuring a straight-through, one-piece construction that eliminates all unnecessary parts and connections for maximum efficiency. The use of titanium not only enhances corrosion resistance but also achieves remarkable weight reduction, making it the ultimate choice for performance enthusiasts.

*SPECIAL ORDER

Applications

• Impreza WRX STI (2004, 2005, 2006, 2007)

Features

• The main material used is titanium, which is lightweight and highly corrosion-resistant.
• Through thorough weight reduction on a part-by-part basis, we have achieved an astonishing weight reduction of 65% compared to the original equipment (this may vary slightly depending on the vehicle model).
• The one-piece structure eliminates any steps at the dividing section, and the structure is as straight as possible, which reduces exhaust resistance and achieves a significant increase in output.
• The double-layered structure of the tail end prevents the bumper from getting burned, while at the same time emphasizing the luxury look required of a street model.
• It meets the strict JASMA standard for close-range exhaust noise. You can use it safely on the street.

Specifications