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HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip (Part Number: )
HKS Racing Cat Back Exhaust w/Titanium Tip
Subaru WRX 2002-2007 / STI 2005-2007
Read 1 Reviews | 4 Q&As
Part # 31008-BF004
$541.80
msrp: $630.00

In stock! Ships same day

Features & Product Details

Get that flagship flat 4 rumble with the HKS Racing Muffler. This muffler has been designed with minimal bends that help reduce exhaust turbulence under acceleration which promotes more horsepower, more torque, reduced turbo lag, and a better throttle response. The larger piping diameter combined with the racing style muffler produces an aggressive tone under boost, as well as under idle.

Exhaust hangers are welded onto the OEM locations so that this exhaust system becomes a direct fitment without the need for any further modifications. Gaskets, as well as hardware, will also be included to make this racing muffler ready for installation. 

Specifications

Brand: HKS
Exhaust Orientation: Straight Exit
Installation Hardware Included: Yes
Piping Coating: No
Piping Flex Joint: No
Piping ID: 3.35in
Piping Material: 409 Stainless
Piping Taper: No
Silencer Included: No
Tip Material: Titanium
Tip Qty: 1
Tip Shape: Round
Tip Size: 4.75in
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.
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REVIEWS & CUSTOMER MEDIA

1 Reviews
4 out of 5 Stars
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4 Stars
(1)
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1 Stars
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Customer Photos and Videos
No user media. You can upload a photo or video of your install by posting a review.
Great Exhaust but fitment wasn't good 4 months ago
Subierex
This exhaust was beautifully wrapped and was damage free and was fairly easy to put together, the problem was once attempted to install the midpipe was too long about 2 1/2 inches long and wouldn't connect to my downpipe so I had to fab it and shorten it about 2 1/2 inches and the rest of the installation was pain free. The catback itself fit perfect and looks and sounds beautifully. Definitely would recommend it only it wasn't for the midpipe being too long.
  
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QUESTIONS & ANSWERS

  • Q: Hks racing catback   Josiah12 months ago

    Shouldn’t this fit my 2004 wrx STI? It shows that it does not but I thought if it can fit 2005-2007 it should fit on my 2004?
  • Q: coating  agdkjh1 year ago

    i know your description says it’s not coated, but the picture seems to contradict that. is this coated? any help would be awesome, thanks!
    • 0 of 0 people found the following answer helpful

      A:  It's a coating type of paint to help prevent any corrosion but I wouldn't call it heat coating or anything.

      Tyler A. @ RallySport Direct 1 year ago  
        
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  • Q: pipes and diameters  Lark_thelandshark1 year ago

    Is the taper at the start of the midpipe designed to mate up to a stock downpipe or an aftermarket 3in downpipe? And is the coated piping stainless steel or mild steel?
    • 0 of 0 people found the following answer helpful

      A:  The taper seen in the photos brings the exhaust down to 3 inch ID, this is designed to mate up with an aftermarket 3 inch down pipe. The exhaust material is 409 Stainless Steel.

      Jared A. @ RallySport Direct 1 year ago  
        
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