HKS Unequal Length Header Subaru WRX 2002-2014 / STI 2004-2021 / Legacy GT 2005-2009

Rated 5.0 out of 5
Based on 1 review
2 In stock
Exhaust Headers

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$1,270.00 $1,149.99

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Fitment Information:

2002-2014 Subaru WRX

2004-2021 Subaru STI

2005-2009 Subaru Legacy GT

2004-2008 Subaru Forester XT


  • Designed to optimize exhaust flow while increasing spool
  • Improves horsepower and torque
  • Improves throttle response and reduces turbo lag
  • Creates an aggressive exhaust rumble
  • Material: 304 stainless steel
  • Unequal design
  • Works with 2-bolt flange up-pipe
  • Includes gaskets and installation hardware

HKS Subaru WRX and STI headers are fabricated of polished SUS304 stainless steel for optimal durability, feature thick flanges, and include all necessary gaskets. A heat insulator is included for additional protection. The HKS WRX and STI header is a very nice piece, but if it is more than you would like to spend, we suggest checking out our other headers that offer similar quality at a more reasonable price. This is an unequal length manifold for the WRX and STI which includes gaskets. The HKS WRX and STI exhaust manifold will bolt to a stock or stock-location uppipe.


02-05 wrx requires 2.5l sti oil pan (on some)

06-07 wrx requires sti oil cooler and sti oil pan

average rating 5.0 out of 5
Based on 1 review
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    1 Review
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100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Jason K.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great Quality, Great Sound

I went from Perrin ELH to these HKS UEL because - yes, I admit it - I missed the sound of UEL. While this doesn't have the *exact* sound of the stock UELs, it's still throaty but quiet in the cabin. I didn't lose much going ELH to the HKS UELs, (~5hp). The build quality is awesome. All four collectors meet at the 2 bolt uppipe. This appears to be the only UEL that are 2 bolt which is good for those with a two bolt uppipe with an EWG and dump tube. Overall, really happy with the product and that low-end torque of course. Highly Recommend.

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HKS Unequal Length Header Subaru WRX 2002-2014 / STI 2004-2021 / Legacy GT 2005-2009
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