Process West Top Mount Intercooler

Part #: PRW PWTMIC03
( 7 reviews )



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Return Policy | Shipping



Brand: Process West
Color: Silver
Core Depth: 3.54 in
Core End Tank Material: Aluminum
Core Height: 7.60 in
Core Type: Bar and Plate
Core Width: 19.44 in
Includes New Clamps: Yes
Installation Hardware Included: Yes
Intercooler Piping Included: Yes
Intercooler Piping Material: Silicone
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.


Subaru Impreza
WRX 2002, 2003

When you are upgrading to a larger turbo or driving the car hard it is important to keep the air charge as cool as possible. Even though the stock intercooler is able to flow sufficient air, it is still only designed for mild driving and stock power levels.

When pushing the car hard, the stock intercooler will heat soak quickly and take a long time to cool back down. This causes the performance of the motor to decline and power to suffer. The Process West intercooler is a direct factory replacement that features a larger than stock core and lower pressure drop. These 2 features previously stated allow the intercooler to flow more air while reducing the amount of pressure that is lost over the surface of the intercooler. These features allow the intercooler to work better for longer and also allow a larger amount of air to pass through the core. The combination of these things will allow this intercooler to handle upwards of 400WHP. This Process West TMIC includes everything needed to make it a direct factory replacement.
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Verified Purchase
2002 WRX Hybrid - PW TMIC installed
2002 MuRDeReD OuT 2 years ago
Pricey Top Mount, but you will not be left disappointed. Dont rush into buying a TMIC, save another week or 2 and buy the Process West. Ive had several Different TMIC and PW is by far the best looking and best constructed TMIC Ive owned. Worth the price and worth the wait. Installed w/ Killer B Holy Headers.. 0 Complaints.. RallySportDirect hooked it up again.
Verified Purchase
Top mount
matt_vaneyck88094 4 years ago
Looks great and very easy to install. very expensive but looks like it is worth the money
Verified Purchase
yeeee buddy
dannyp 4 years ago
awesome product. process west did a great job on this top mount. installed it on my 02 bugeye and love it. everything fits great and there is absolutely no complaining about it. id recommend this to anyone who wants to get a top mount and is willing to spend a little money for one.. Thank you rally sport!
Verified Purchase
Ultimate Top Mount Intercooler Kit!!!
esteve67033 4 years ago
This is an extremely well thought out intercooler kit by Process West. I am very impressed with the quality, attention to detail, fitment and how complete the kit is. It's not cheap, but you get what you pay for and actually when you consider all that's included in the kit (splitter, silicone hoses, clamps, etc), the price is reasonable. The splitter fits very well and I like how I can keep my stock hood scoop for that sleeper look. The intercooler clears everything under the hood including the A/C lines and I can still check my transmission dipstick with that big core in there! I also wanted to say that Rallysport Direct is an excellent vendor. They have excellent customer service, fast shipping, and a really nice website.
Verified Purchase
2nd review
snke00117980 5 years ago
Only problem Im having is that I stripped the bolt threading that is on the intercooler. I think they should have made that out of steel rather than aluminum :(.. but it still is a nice piece!


  • AnswerQ: Different splitter  Boxercide 2 years ago

    Hi, I have a 2000 Impreza with an 02 WRX swap and I was wondering if it would be possible to purchase this intercooler with the JDM MY99-00 splitter instead of the 02-03 splitter.

    • A: Unfortunate no splitter is available for swapped cars.

      Kirill C. 2 years ago

  • AnswerQ: will this splitter fit  guest55c7ee97caae52f460972518 3 years ago

    will this splitter fit on an 02 wrx with an 02-03 jdm hoodscoop?

    • A: The JDM hood scoop is taller than USDM and there will be a gap between the splitter and scoop. It should bolt up, but we cannot guarantee fitment.

      Zach G. 3 years ago

  • AnswerQ: looking in to  sebringwrx 3 years ago

    I would like to get that intercooler,but just wondering what is that extra hose for thank u

    • A: That is for the PCV hose that on the factory IC sits on top and is metal.

      Kirill C. 3 years ago

  • AnswerQ: Updated splitter question  tempemail55c3be07caae52c4048b4e04 3 years ago

    Im reading on some of the forums that PW offers an alternative splitter for those of us that have the larger scoop, Is that available @ RSD? I see its been a few years since this was asked.

    • A: We still not have seen a JDM Scoop bug eye specific splitter be released.

      Kirill C. 3 years ago

  • AnswerQ: Splitter sizes  gdnorm 3 years ago

    I see on the Australian website that the splitter comes in fitments for all model years. Do you have the splitter for the USDM stock wrx scoop?

    • A: We do list basically all available splitters from Process West on our website but they are still only going to be guaranteed for fitment with the Process West intercooler. The part number that you would want to look at for an 02-03 WRX is PWSP03, 04-07 WRX is PWSP04. Thank you.

      Tanner S. 3 years ago