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HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
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User Media for: HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
User Media for: HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
User Media for: HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
User Media for: HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
User Media for: HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007
User Media for: HKS Carbon-Ti Cat Back Exhaust - Subaru WRX/STI 2002-2007

HKS Carbon-Ti Cat Back Exhaust

Subaru WRX/STI 2002-2007

Read 7 Reviews | 10 Q&As
Part # 3112-EX005
$667.24
msrp: $859.00

Estimated to ship in 12 days
ANY QUESTIONS?

Features & Product Details

RallySport Direct proudly carries performance upgrades by one of the biggest names in the aftermarket industry, HKS. 

Here, you are looking at the HKS Carbon-Ti Cat-Back Exhaust System for the 02-07 Subaru WRX STI. This is a great way to improve the performance and the sound of your vehicle. HKS designed this muffler using premium stainless-steel materials along with smooth mandrel bends and larger piping diameter. The result is improved throttle response all while providing an aggressive exhaust note.

DETAILS:

  • 304 stainless steel construction
  • Carbon fiber wrapped muffler
  • 120mm tip size
  • 3" piping diameter
  • Exhaust hangers welded onto the OEM locations for direct fitment
  • Improves power and performance
  • Produces an aggressive exhaust note
  • Includes new gasket and hardware
  • Specifications

    Brand: HKS
    Exhaust Orientation: Angled Exit
    Installation Hardware Included: Yes
    Piping Coating: No
    Piping Flex Joint: Yes
    Piping ID: 3.00in
    Piping Material: 304 Stainless Steel
    Piping Taper: No
    Silencer Included: No
    Tip Material: Titanium
    Tip Qty: 1
    Tip Shape: Round
    Tip Size: 120mm
    Mfgr. Warranty: 1 Year
    Condition: New Product
    Return Policy:
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    7 Reviews
    4.7 out of 5 Stars
    5 Stars
    (5)
    4 Stars
    (2)
    3 Stars
    (0)
    2 Stars
    (0)
    1 Stars
    (0)
    Customer Photos and Videos
    HKS Carbon-Ti Cat Back Exhaust ( Part Number: 3112-EX005)
    HKS Carbon-Ti Cat Back Exhaust ( Part Number: 3112-EX005)
    HKS Carbon-Ti Cat Back Exhaust ( Part Number: 3112-EX005)
    HKS Carbon-Ti Cat Back Exhaust ( Part Number: 3112-EX005)
    HKS Carbon-Ti Cat Back Exhaust ( Part Number: 3112-EX005)
    HKS Carbon-Ti Cat Back Exhaust ( Part Number: 3112-EX005)
    HKS Carbon TI exhaust  1 year ago
    5out of 5stars
    SlubsWRX
    First off, I have been through many setups with previous cars. I currently own a super clean low mile 03 bugeye. I had a Tomei on my 04 sti. It was perfect for me when I was in my early 20s. I regretted selling that car so when I picked up my 03 I wanted another tomei. Being 34 years old with 3 children, the Tomei was very loud, louder than i remember. I am catless. My 04 sti setup was carted. That's probably why it seemed louder. Anyways, after owning the Tomei for 1 month, I had to go with a milder option. I ended up picking up the HKS sport catback exhaust. That was too quiet for my taste. After speaking with friends and seeing an above review, I purchased the HKS carbon TI. I cannot be happier. It matches all of my carbon goodies, it sounds PERFECT! IT LOOKS PERFECT. Having been through a lot of exhausts, as a 34 year old with kids looking for a mild exhaust, I chose right. Its mild under normal load and normal daily driving. Under Wide Open Throttle, it opens up and screams. Not too loud but just right...like the little red riding hood story. Deep and aggressive tone makes me love getting into the car on weekends. You wont be upset with this purchase. Fitment was a breeze. Hope this helps.
      
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    HKS Carbon-Ti exhaust on 05Sti 2 years ago
    5out of 5stars
    05Sti
    Love this exhaust
      
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    1 of 1 people found the following review helpful
    AWESOME ! 4 years ago
    5out of 5stars
    Ian L.
    One thing I will note, if you have the stock rear diffuser on your STI, IT DOES NEED TO BE TRIMMED !!!! YOU DO NEED TO CUT CHUNKS OUT OF IT SO THE EXHAUST DOESN'T TOUCH IT AND MELT IT, IT IS NOT HARD TO TO, BUT TAKE IT OFF BEFORE INSTALLING THE MUFFLER SECTION TO MAKE THINGS A MILLION TIMES EASIER. JUST TAKE SOME SNIPS AND KEEP TEST FITTING IT TO SEE HOW MUCH TO CUT OFF TILL THE BOLT HOLES LINE UP WITH CLEARANCE FROM THE MUFFLER. OK on the exhaust...... This Cat Back is beautiful ! It came shipped int a very well padded box, every part was secured and stable inside of the box with no movement. Opening this box is like opening the best gift you have ever gotten on Christmas morning as a kid ! It is so shiny and elegant but 110% bad ass and mean just by the looks of it. It made me smile from ear to ear just looking at it and inspecting it thinking how great it's going to look/sound once installed. Like others have stated, instructions are useless, but then again it's straight forward, you unbolt old, installed new and DONE ! I installed this bad boy onto my 2006 WRB STI to a aftermarket down pipe (APS brand with High flow Cat) so no special adapter was needed to attach, like you would need if installing to a stock down pipe. I didn't use the stock exhaust gaskets supplied with the Cat Back, they are honestly thin and piss poor. I bought and used Remflex 3 inch two bolt exhaust gaskets instead (RSD has these bad boys) they are thicker than most and are definitely worth the extra cash for peace of mind. I have had stock exhaust gaskets fail over time and turn to dust, so don't be cheap if you want to not worry about it later down the line and or have an exhaust leak possibly. Install time was about an hour or so, I don't have a lift like a shop, so I was using jack stands and ramps, so it takes a bit longer to get the car set up to where you have room to work and install. I used the stock exhaust hangers from Subaru, I have had Kartboy ones in the past, and over time they fail, get really hard and crack, so I went with the stock ones, no clearance issues what so ever doesn't touch bumper anything so no need to worry about burning your bumper. So once installed, I couldn't wait to start up the car to hear this bad boy roar. it is a very beautiful boxer rumble producer, it make the boxer sound deep and mean, and like others have stated it is not overly loud either, it is just right ! On idle it is subtle and a low deep rumble and when you are in boost and open up the car, it does roar ! But not too loud and annoying, it will definitely get you noticed weather you are driving by or it is parked, it is such a beautiful exhaust when you look at it once installed. I am very pleased with my purchase and wouldn't hesitate to do it all over again, thank you RSD for always having what I need when I need it, keep up the great work.
      
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    Best CBE Ever! 10 years ago
    5out of 5stars
    Irwin A.
    I've owned this piece for about a year. So far I'm extremely satisfied with it. It's quiet on idle but it will roar on high RPMs. The exhaust note is low. I've received a lot of compliments on it for the looks and the sound. Highly recommended!
      
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     11 years ago
    4out of 5stars
    Kevin R.
    Looks great sounds great fits perfect. 2005 wrx stock downpipe mounted up fine. Hks provides some lame stickers though. Instalation instructions were useless....obviously im gonna know i take off the stock exhaust and put this one on. No details about what bolts go where or pictures of the install. Dont throw out the springed downpipe to cat-back bolts i found out the hard way. Otherwise excellent product!!
      
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    QUESTIONS & ANSWERS

    • Q: Fitment  Cody3 years ago

      Will this fit an 08 impreza turbo? I very much like this product and would love to put it on mine, just worried about fitment If not, is there a similar product that will fit
      • 0 of 0 people found the following answer helpful

        A:  This part is not confirmed for your 2008 WRX.

        Michael N.
          
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    • Q: APS DWG Down Pipe W/ High Flow Cat  Ian L.4 years ago

      Will this Cat Back Exhaust bolt right up to my 3'' APS down pipe with high flow Cat ?
      • 1 of 1 people found the following answer helpful

        A:  his should work fine with the APS downpipe, and most other downpipes with the 2 bolt 3" flange.

        Josh C.
          
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    • Q: Down Pipe Fitment ?  Ian L.4 years ago

      Will this CBE fit an APS down pipe with high flow cat ?
      • 0 of 0 people found the following answer helpful

        A:  This should work fine with the APS downpipe, and most other downpipes with the 2 bolt 3" flange.

        Marcus E. @ RallySport Direct 4 years ago  
          
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    • Q: APS DWG Down Pipe W/ High Flow Cat  Ian L.4 years ago

      Will this cat back exhaust bolt up to a APS DWG Down Pipe with High Flow Cat ?
      • 0 of 0 people found the following answer helpful

        A:  This should work fine with the APS downpipe, and most other downpipes with the 2 bolt 3" flange.

        Marcus E. @ RallySport Direct 4 years ago  
          
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    • Q: Fit  Adriaan 4 years ago

      Will this fit on right hand drive models.
      • 0 of 0 people found the following answer helpful

        A:  Unfortunately, we can only confirm fitment for US Models which are Left Hand Drive.

        Brady R @ RallySport Direct 4 years ago  
          
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