• HKS Hi-Power SPEC-R Exhaust | Subaru WRX STI (04-07) (31030-AF001)
  • HKS Hi-Power SPEC-R Exhaust | Subaru WRX STI (04-07) (31030-AF001)
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HKS Hi-Power SPEC-R Exhaust | Subaru WRX STI (04-07) (31030-AF001)

HKS Hi-Power SPEC-R Exhaust | Subaru WRX STI (04-07) (31030-AF001)

31030-AF001

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$2,990.00 USD
$2,990.00 USD
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The HKS Hi-Power SPEC-R Exhaust for the Subaru WRX STI (2004-2007) is a high-performance sports muffler designed to enhance exhaust flow and sound. Constructed with titanium, it offers superior corrosion resistance and significant weight reduction, contributing to improved vehicle agility and handling. The exhaust features a straight-through, one-piece design that eliminates unnecessary parts and connections, ensuring maximum efficiency and a more aggressive exhaust note. As a top-tier model, it adheres to JASMA standards, combining craftsmanship with performance to deliver an optimal balance of sound, durability, and power gains.

This exhaust system is specifically engineered for 2004-2007 Subaru WRX STI models, providing a direct bolt-on upgrade for enhanced performance and sound. It is suitable for street and spirited driving, offering increased exhaust flow and a more aggressive tone. The kit includes the full muffler assembly, designed for easy installation without modifications. Compatible with stock or aftermarket components, this exhaust is ideal for enthusiasts seeking a lightweight, durable upgrade that elevates both the sound and performance of their Subaru WRX STI.

Overview

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
Muffler shape Dti (Hi-Power SPEC-R)
主要材質 Of
Tail Outer Diameter 120
Intermediate Pipe Diameter 75 (※1)
Nearby exhaust noise normal 84
HKS 93
Ground clearance when installed (※2) Number 140mm
Kit target area Intermediate expansion tube
remarks
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