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2002-2007 Subaru WRX
2004-2007 Subaru STI
The Process West Top Mount Intercooler is engineered to deliver lower intake temperatures, consistent power, and improved cooling efficiency for performance Subaru applications. Rather than relying on an oversized core, Process West uses a 90mm intercooler core designed to maximize airflow through the factory-style top-mount layout.
Key Features & Benefits
Optimized 90mm Core
Extremely thick top-mount intercoolers can restrict airflow as air enters through the hood scoop and turns through the core. Process West developed its 90mm core to balance intercooler capacity with efficient airflow, helping reduce outlet temperatures without unnecessary restriction.
High-Flow Silicone Y-Pipe
The included moulded silicone Y-pipe is designed to distribute charge air evenly across the intercooler entry tank. More balanced airflow helps maximize use of the entire intercooler core.
Proven Performance
During back-to-back dyno testing on a 2005 Subaru WRX, the Process West intercooler produced 115.5 kW compared with 107.5 kW using the factory intercooler.
In static dyno testing, peak outlet temperature was reduced from 66°C with the factory intercooler to 51°C with the Process West unit. During spirited road testing, the factory intercooler reached 72°C while the Process West intercooler remained below 43°C.
What's Included
Note
This intercooler does not include an intercooler splitter. Process West recommends using a properly matched splitter or hood scoop ducting to maximize airflow through the core.
I had my old stock intercooler with rocks in it and the couplers are in bad shape. it takes some time to maneuver around the engine bay. but awesome quality
All you could ask for in a WRX upgrade. My stock intercooler saw a lot of highway miles before I bought it. Needless to say the fins on the intercooler were bent, crammed with rocks and over all ascetically very unpleasing.
After upgrading quite a bit with all black parts and hoses I really like how this rounds out the engine bay. The only complaint is a couple of the letters were peeling off the intercooler when it was unboxed. I peeled them all off effortlessly to avoid the headache. Not really a part snob so it doesn’t matter to me regardless.
Import Image Racing literally worked magic on having this intercooler and intercooler shroud (just ordered the shroud today and it's on the way!!) in stock. Hard to find items for this make and model due to demand, but they have them. Shipping time was like lightspeed, and you get your tracking number as soon as it leaves their hands. Their chat support at Import Image Racing gets back to you rather quickly and is happy to go the extra mile to find what you need...BIG shout out to Dane for the above and beyond help! I've got a new steady vendor of hard to find parts at Import Image Racing. Thank you so much!
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