Koyo Aluminum Radiator Subaru WRX / STI 2003-2007

Rated 4.9 out of 5
Based on 15 reviews
koyVH091672
71 In stock
Cooling Radiators

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$313.96

VH091672

Fitment Information:
Subaru Impreza WRX 2003-2007
Subaru Impreza WRX STi 2004-2007
Note: Fits all WRX/STi from 2003-2007 model years. 
*Automatic transmission owners, see notes below*

Specifications:
Full aluminum radiator
Core Depth: 1.400"
Core Height: 13.40"
Core Width: 25.50"
Item Weight: 11.8 pounds
**Radiator cap not included. The factory radiator cap will more than likely fit. The Koyo SKC-13 radiator cap is compatible and sold separately.

Features:
  • True plug and play installation; No engine modifications necessary and retains mounts for the stock fan shrouds and fans.
  • Hand crafted heliarc welds for stronger enforcement along aluminum connections
  • All Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed. (What does that mean? Learn more here: The NOCOLOK® Flux Brazing Process)
  • Developed specifically for vehicles which see extreme heat, are limited in space, and where the factory inlet/outlet locations eliminate the option for a proper N-FLO design.
  • The Hyper V Series radiators have a specially designed fin and tube pitch which significantly increased its surface area while still allowing for excellent air circulation through the radiator. 

Automatic transmission owners:

This radiator doesn't utilize an internal transmission cooler. If you wish to install this radiator in your car with an automatic transmission, you'll need to invest in an auxiliary transmission cooler. 

RETURNS POLICY

Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

average rating 4.9 out of 5
Based on 15 reviews
  • 5 Stars
    14 Reviews
  • 4 Stars
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  • 3 Stars
    1 Review
  • 2 Stars
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93% of reviewers would recommend this product to a friend
Customer photos and videos
15 Reviews
Reviewed by Keith St L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

It holds coolant!

Yes, it does that, of course. Quality seems great but as this is my first one I cannot comment on how long it will/may last. Being all aluminum vs the stock piece which is plastic on top and bottom, I can only assume it’ll last longer. I went through 2 stock radiators, they each lasted about 5-6 years before the plastic would crack. For those curious, I was completely empty upon the install and this took 2.3 gallons to fill. Please enjoy the photo of my blown, stock radiator!

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Reviewed by Chris D.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Holly crap fast shipping!

So I was doing a budget build to get my 06 wrx to get her back on the road when I bought a rock auto cheap radiator. Surprise, it failed

In less than 1,000 miles; received a replacement, it failed in 4 days. Did some research and say that IRR had the best prices and reached out to Dane Young to see if they were in stock and how long to get the radiator. My man Dane said they were in stock and would ship same day. Pulled the trigger and the radiator was on my door step in less than 14 hours…… I felt like I was on a high level car show needing this part to make it to SEMA, but nope, just their everyday awesome service. Thanks Dane, if your bosses are reading this, give him a day off paid, cause all my parts are bing order through you guys from now on😎

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Reviewed by Nick2knee
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Solid Radiator

Install and fitment were easy and on point. The fully aluminum build is beautiful and I'm glad to finally have one of these under the hood. Thickness is about 2.5x stock and will definitely cool much more effectively.

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Reviewed by Eric S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

High quality part, always raising the standard in service

Good fitment, fan and crossover pipe hardware is included, fast delivery and amazing service from the iir crew as always!

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Reviewed by Mark S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Perfect Fit and Finish!

This is my 3rd Koyorad and they ALWAYS fit perfect. The welds are great and they perform flawlessly. If you are on the fence about this one and are looking at the other brands... get this one, the others never fit as well!

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Koyo Aluminum Radiator Subaru WRX / STI 2003-2007
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