GrimmSpeed 15+ Subaru WRX Top Mount Intercooler (grm090070)
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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. The GrimmSpeed engineering team has a history of developing the highest performing Top Mount Intercoolers available and the 2015-21 WRX fitment is 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.
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 the inspection, end tanks are welded to the 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 powder-coated with a durable texture black finish. Stainless steel hardware secures the splitter to the factory hood scoop.
- Subaru WRX (2015, 2016, 2017, 2018, 2019, 2020, 2021)
- 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
- High Efficiency and Flow - Other manufacturers focus on cooling without understanding the damage that high restriction can do to a car's 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
In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on final sales, special orders, opened, installed, incomplete, or otherwise used products. In order to initiate a return, an RMA number must be requested and approved via e-mail.
All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).
Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.
For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.