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Product Resources
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
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
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.
QUESTIONS & ANSWERS
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Q: Hks racing catback Josiah10 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?
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0 of 0 people found the following answer helpful
A: This exhaust is also compatible for the 2004 WRX and STI.
Evan M. @ RallySport Direct 10 months agoWas this answer helpful?
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Q: coating agdkjh11 months ago
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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 11 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: HKS exhaust Jdawwwwg1 year ago
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0 of 0 people found the following answer helpful
A: Yes it will.
Tyler A. @ RallySport Direct 1 year agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: pipes and diameters Lark_thelandshark1 year ago
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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 agoWas this answer helpful?
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0 of 0 people found the following answer helpful
