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HKS Hi-Power Exhaust Subaru WRX/STI 2002-2007


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This exhaust system improves the performance by lifting the restrictions found in the OEM exhaust design.

Here are the details:

Larger 3" piping diameter and smooth bends limit turbulence and restriction under acceleration

304 stainless steel materials

Minimal bends in the design

Increase in both horsepower and torque

Improved throttle response

Reduced turbo lag

Deep tone under idle with an aggressive tone under acceleration

Exhaust hangers welded onto OEM locations

Includes new gaskets and hardware making this exhaust system ready for the installation


Exhaust Orientation: Angled Exit

Installation Hardware Included: Yes

Piping Coating: Yes

Piping Flex Joint: Yes

Piping ID: 3.00in

Piping Material: 304 Stainless Steel

Piping Taper: No

Silencer Included: No

Tip Material: Stainless Steel

Tip Qty: 1

Tip Shape: Round

Tip Size: 120mm

This year has proven to be a bit different than expected, so we must note that there is the potential for shipping and inventory delays due to scarcity and other factors impacting our world. DRP remains fully committed to pursuing the completion of your purchase within a reasonable manner under the current circumstances. Feel free to contact us to confirm availability of your favorite items!

This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to