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HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
Community Media
User Media for: HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007
User Media for: HKS Hi-Power Exhaust - Subaru WRX/STI 2002-2007

HKS Hi-Power Exhaust

Subaru WRX/STI 2002-2007

Read 23 Reviews | 23 Q&As
Part # 3106-EX008
$472.14
msrp: $549.00

Only 2 left!

Features & Product Details

RallySport Direct proudly carries quality aftermarket performance upgrades brought to you by one of the leading pioneers of the sport compact and turbocharged industry, HKS. 

 

On this page, you are looking at the HKS Hi-Power Exhaust System. 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
  •  

    Specifications

    Brand: HKS
    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
    Mfgr. Warranty: 1 Year
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    23 Reviews
    4.8 out of 5 Stars
    5 Stars
    (20)
    4 Stars
    (2)
    3 Stars
    (1)
    2 Stars
    (0)
    1 Stars
    (0)
    Customer Photos and Videos
    HKS Hi-Power Exhaust ( Part Number: 3106-EX008)
    HKS Hi-Power Exhaust ( Part Number: 3106-EX008)
    Had it 4 years and love it! 1 month ago
    4out of 5stars

    It's the perfect balance if smooth yet noticeable. Considering it being in Boston's harshest winters, I'd say it has held up well!
      
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    HKS Hi-Power EJ20 GDA WRX 4 months ago
    5out of 5stars

    I have this fitted to my 2004 WRX and the initial impressions are that this catback is heavy (I alternate back and forth between this and a Tome Expreme Ti). Performance doesn’t seem to be affected at all from swapping (both are 3” in diameter though the Tomei is slightly larger). The main reason I purchased this exhaust was that this is resonated and therefore quieter while being the cheapest catback available while maintaining acceptable quality. I have no complaints as to the muffler section though there are parts of the resonator and where the sections join that do corrode, so take that into consideration if you live an area where snow/salt is common. Overall I am happy as I purchased this to keep me from getting exhaust violation tickets and to conform to city and certain tracks’ decibel limits.
      
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    Good product reliable shipping 10 months ago
    3out of 5stars

    High quality for the money major downside was i had to remove my oem rear diffuser. 07 sti limited
      
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    Tame performance exhaust, but if you are looking for rowdy look elsewhere.  1 year ago
    5out of 5stars

    I have the coupled with a catted Invidia down pipe. The fitment was a little lower from the better then i prefer but it still looks damn good. The exhaust itself has a great note but is pretty quiet. But those of you looking to keep out drone and the decibel level low this is the exhaust. I have little to zer drone at cruising speeds (full interior wagon) but lets off a nice sound when you are in it.
      
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    Great Exhaust 3 years ago
    5out of 5stars

    This is an affordable and well made exhaust. Install time took about an hour including the removal of the stock exhaust. Looks good, fits well, and not overly loud. Has that nice boxer rumble.
      
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    QUESTIONS & ANSWERS

    • Q: HKS hi-power  Justin2step21 days ago

      Would this bolt up to a Cobb down pipe or would I need an adapter? If so which one? Thanks
    • Q: 2004 WRX  ShaneM22 days ago

      Do I need an adapter for the downpipe to put this on?
    • Q: Will it fit?  Tazza6 months ago

      Will this system fit a stock 2006 Impreza 2.0r if I use a 2.5" to 3" adapter?
    • Q: Fitment   2007 wrx 9 months ago

      Will this bolt right up to stock down pipe on ‘07 WRX
      • 0 of 0 people found the following answer helpful

        A:  For the best fitment, you'll want to get an OEM downpipe to 3" catback adapter, such as part number: GRM 077046.

        Marcus E. @ RallySport Direct 8 months ago  
          
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    • Q: 05 NA wagon  Hugh9 months ago

      Will this system fit on my 2005 subaru impreza RS wagon? (The wagon is completely stock)