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Top Mount Intercooler Kit - Subaru WRX 15-17

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Have questions about fitment or applications? Contact Us

Product Description

It appears that you’re not the only one with excellent taste in premium automotive components! Unfortunately, 2015+ WRX TOP MOUNT INTERCOOLERS are temporarily out of stock. They should be available again soon. Please contact customer service via phone (612-379-0000) or email for details!

Meticulous Engineering, Unparalleled Craftsmanship

Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring cast aluminum end tanks, large bar and plate core and TIG welded construction. The factory FA20dit TMIC is well-suited for stock applications, but when boost levels are increased, the higher post-turbo air temps contribute to pre-detonation (or 'knock') and loss in power. The GrimmSpeed intercooler is designed to keep charge temps consistent during aggressive driving so that the rest of your parts can work to make power.

Quick Specs

  • 13.1in x 10in x 3.75in Cross Flow Core - careful balance of high heat transfer and low pressure drop
  • Cast Aluminum End Tanks - featuring machined splitter mounting features
  • 5-Ply Silicone Couplers - custom molded and reinforced for demanding environments
  • Fully-Integrated Two-Piece Splitter - collects air from the entire width of the scoop and feeds it directly to the core
  • Water Meth 1/8 NPT Bung - Cast into the outlet end tank, CNC machine tapped and plugged for future use
  • Vibration Isolation Mounting - protect the intercooler system from fatigue due to vibration by reusing the factory mounts
  • Cleaned, Inspected and Sealed Prior to Shipping - prevent motor damage due to foreign matter

Why GrimmSpeed?

The GrimmSpeed engineering team has a history of developing the highest performing Top Mount Intercoolers available and the 2015+ WRX fitment will be no different. This intercooler was in the testing and revision phase for over a year, as continual improvements to performance and fitment were found. The GrimmSpeed kit offers a perfectly fitting intercooler assembly, along with a custom 5-ply silicone throttle body coupler and hi-torque stainless steel clamps. Each kit also includes our unique two-piece splitter design that replaces the factory engine cover with a splitter design that's made to fit the larger core of the GrimmSpeed TMIC. The performance of any Top Mount Intercooler is only as good as the splitter that's directing air through the core and in this area especially, the GrimmSpeed team nailed it.

  • High Efficiency and Flow - Other manufacturers focus on cooling without understanding the damage that high restriction can do to a cars ability to produce power.
  • Two-Piece Splitter Design - Other manufacturers repurpose or modify the stock engine cover. GrimmSpeed has replaced it entirely with an innovative two-piece design.
  • Optional Upgraded Charge Pipe - Use of the GrimmSpeed Charge Pipe is optional, allowing you to upgrade at your own pace.
  • Designed and Manufactured Locally - Ensuring repeatable quality, clean components and consistent assembly


Each intercooler uses two unique end tanks. The first accepts the hot charge air from the turbo and feeds it to the intercooler core. The second receives the cooled charge air from the core and delivers it to the throttle body. These end tanks are precision cast and machined right here in Minnesota. Following inspection, end tanks are welded to high density bar and plate intercoolers before the entire assembly is pressure tested, cleaned and sealed for shipment. 5-ply silicone couplers hold their shape in extreme conditions and ensure that charge air makes it to and from the intercooler with no trouble. Splitters are laser cut from aluminum sheet and CNC bent before being assembled and powdercoated with a durable texture black finish. Stainless steel hardware secures the splitter to the factory hood scoop.


We tested the OEM TMIC, GrimmSpeed TMIC and a leading competitor TMIC in a back to back to back comparison and used our multi-sensor data acquisition system to evaluate temperature deltas, intercooler efficiency, pressure drop and more. Below is a chart showing cooling efficiency between the three. To learn more and read the full testing write-up, please follow this link!


Fitments and Options

  • 15-17 Subaru WRX

Product Videos

GrimmSpeed Top Mount Intercooler Installation Guide - 2015+ Subaru WRX (07:40)
This video will walk you through the entire installation of the GrimmSpeed TMIC step-by-step. As always, contact us directly with any questions! Written install guide and additional information: http://www.grimmspeed.com/top-mount-intercooler-kit-subaru-wrx-15-17/ Approximate Time: 1hr30min Difficulty: 4/10 Tools Needed: - 3/8" Ratchet, extension, 12mm, 10mm, 8mm socket - 4mm allen wrench - Flathead screwdrivers - Center punch or pliers
  • GrimmSpeed Top...
    This video will walk you through the entire installation of th...

Product Reviews

Write your own product review

Product Reviews

  1. Enhances car mechanisms health and extends longevity.

    Posted by XS

    It's worth it and functions optimally than the stock.

  2. Great Product

    Posted by Wayne

    I'm very happy with this intercooler and charge pipe. This is a quote from Chris over at Cobb Tuning Surgeline "We normally see this kind of power from a FMIC" I manage to put down 310+ WHP and 340+ Torque. I know that the IC and charge pipe really help put down those kinds of numbers.

  3. Excellent Product

    Posted by Mike D.

    Fit and finish is great. Grimmspeed shipping was fast even during the holidays and excellent value for the price. Grimmspeed customer support is even better. Helped me out with an issue caused by installer even though it wasn't Grimmspeeds fault. I can't say enough good things about Grimmspeed.

  4. Must have for your car!

    Posted by Unknown

    I purchased the TMIC for my 2015 WRX. It arrived very quickly in the mail. The product was packaged very well and had no damages. The installation was very straight forward just like the installation video on their website. I will continue to purchase Grimmspeed products in the future. Quality is top notch!

  5. Awesome Intercooler!

    Posted by Tyler G.

    This was definitely a good buy. Before making the purchase, I did plenty of research on who puts the most R&D into their products. Grimmspeed definitely took the cake. This is an awesome intercooler and performs incredible. Also, I have to comment on the packaging. The way this thing is shipped is very good. Not a lot of people would think about this until they receive a damaged product. It is good to know that Grimmspeed puts 100 percent effort into the product from start to finish.

  6. Great Fitment

    Posted by Ty

    I'll start with product packaging. Perfectly packaged and overall added to the experience of making a significant purchase like this one.
    Second - The product itself. It is immediately obvious the care and detail that went into designing and assembling this inter-cooler. I purchased the Thermal Coated inter-cooler and I have to say when it comes to the attention to detail Grimmspeed has it down. Welds looked amazing and the finish was flawless.
    Third - Install. I watched the install video a few times while I anxiously awaited my preorder so by the time the product got to my house I felt pretty confident on the install process. I am by no means a mechanic and really just have some basic knowledge a decent set of tools but not much else. Install was very easy and if I can do it I promise you that you can do it as well. As long as you take your time and not rush you will have no problem with the install. Everything lined up perfectly and I have to say it looks great.

    I am currently running stage 2 ots cobb map and everything seems to be running great. I am waiting for the Charge pipe and then it will be off to Cobb for a protune. I will follow up with tuned numbers. First review of any product I've purchased but I felt like this definitely deserved a few minutes of my time.