
HKS Hi-Power Exhaust Subaru WRX/STI 2002-2007
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
Features:
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
Thanks to amazing customers like you, we are currently experiencing a high volume of orders and shipping may be delayed. To confirm shipping ETA, reach out to our Customer Service team for assistance!

The car parts world is still feeling the impact from the Covid buying spree and shut down. Thanks to amazing customers like you, we are currently experiencing a high volume of orders and shipping may be delayed. DRP remains fully committed to pursuing the completion of your purchase within a reasonable manner under the current circumstances. You can always contact our customer service via email with questions, or to check for availability! Please note: Not all orders will experience a delay, however, we want to continue to be as open and transparent as possible should you experience a longer than average order processing time. As a small business, your continued support means the world to us and your choice to shop with us has made a huge impact and we greatly appreciate you and your understanding!
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 www.P65Warnings.ca.gov