GrimmSpeed 15-21 Subaru WRX Top Mount Intercooler w/ Thermal Dispersant Coating (grm090071)

Regular price $999.00 USD Sale price $999.00 USD Regular price $999.00 USD
Special order - Ships in 5+ weeks
SKU: grm090071
Product Description

A GrimmSpeed Top Mount Intercooler Kit, with cast aluminum end tanks, a massive bar and plate core, and TIG welded construction, can take the place of that undersized, plastic factory intercooler. The factory FA20dit TMIC is suitable for stock applications, however as boost levels are raised, pre-detonation (or "knock") and power loss are caused by the higher post-turbo air temperatures. The GrimmSpeed intercooler is made to maintain constant charge temperatures under challenging driving conditions so that the rest of your engine's components can continue to produce power.

Advantages of GrimmSpeed Top Mount Intercooler w/ Thermal Dispersant Coating

The 2015–21 WRX fitment is no exception to the GrimmSpeed engineering team's tradition of creating the highest-performing Top Mount Intercoolers currently on the market. As performance and fitment continued to be improved, this intercooler spent more than a year in testing and adjustment. A correctly sized intercooler assembly, a unique 5-ply silicone throttle body coupler, and high-torque stainless steel clamps are all included in the GrimmSpeed kit. Each kit also comes with our special two-piece splitter design, which swaps the factory engine cover for a splitter engineered to match the GrimmSpeed TMIC's larger core. 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.


  • Subaru Impreza 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
  • 1/8 NPT Bung - Cast into the outlet end tank, CNC machine tapped and plugged for future use
  • Thermal Dispersant Coating - Black

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

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 Clearance Items, 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.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

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