Process West Top Mount Intercooler

Part #: PRW PWTMIC06
( 9 reviews )



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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: 20.86 in
Includes New Clamps: Yes
Installation Hardware Included: Yes
Intercooler Piping Included: Yes
Intercooler Piping Material: Silicone
Return Policy:

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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 STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014
Subaru WRX STI
Base 2015

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.




Good intercooler
nickpanozzo51502 6 months ago
Bought this for my 2015 STI to go with the blouch 20G-XTR Turbo. I was concerned as the stock intercooler piping was about an inch too short to fit up the the new turbo. Anyone worried, the piping for this does fit and I believe its a little longer, but it took some pushing and wiggling toward the pass side. Tight fit by upper cowl grille, but all in all a good product.
Verified Purchase
Better than the OEM intercooler.
Mike H. 3 years ago
Dump the stock inter-cooler and get a Process WILL keep the temps down!
Verified Purchase
great intercooler
priccetti17489 3 years ago
im running 440whp and 470wtq on this intercooler on 26 psi and it holds great with not a lot of heat soak
Verified Purchase
Prevent heat soaking and improve power
Subiesuperlover 3 years ago
I just installed this on my 2011 STI (EDM), 1hour job, all necessary pipes provided. I do need to chop off 1cm of the silicon Y pipe (on the IC ends) to make the IC moves forward a bit. This is because I have a cusco tower bar. Trust me, it is a simple direct stock replacement. My boost becomes more stable after traffic (you will know if you've been to Hongkong) probably due to cooler air entering the system.
Verified Purchase
great intercooler
priccetti17489 3 years ago
this handles my gtx3071 with no problems, it doesn't heat soak in traffic as much as the stock does


  • AnswerQ: 2016 sti  Kadamski5140 7 days ago

    Will this help lower spool rpm with a cobb 20g turbo?

    • A: Aftermarket intercoolers generally do not reduce spool time because they usually have more volume to fill, but they will be more efficient and cool better than stock. This would work well with a 20G turbo.

      Zach G. 7 days ago

  • AnswerQ: process west tmic vs grimspeed tmic  fly23jr56890 7 months ago

    I'm aiming for 450whp pump gas. Which will be a better choice? Which can support more hp?

    • A: Both will have about the same efficiency range and both are good choices. For help deciding on an intercooler, please give us a call.

      Josh P. 7 months ago

  • AnswerQ: ATP Turbo GTX3576R  buRashid 7 months ago

    can i use this TMIC with the ATP Turbo GTX3576R turbo

    • A: At that point it may be more efficient to go with a front mount, but this depends on other supporting modifications you may have.

      Nick S. 7 months ago

  • AnswerQ: Recently purchased for 2015 STi   9 months ago

    Hey guys, I have heard conflicting information on whether or not the PW tmic will fit a Blouch 1.5XTR. Do I need to extend the y-pipe to fit? Or will this fit as is? As always, thanks for the help.

    • A: As long as each is vehicle specific to the 2015 STi then it should work together without any sort of fitment issues. Which it does appear that they are. Have a nice day.

      Sterling W. 9 months ago

  • AnswerQ: 2015 sti  jack0725 1 year ago

    Hey buddy; will this fit my 2015 sti launch edition? thanks

    • A: Yes! This will fit on your car.

      Josh P. 1 year ago