GrimmSpeed Top Mount Intercooler - Subaru WRX 2002-2007 / STI 2004-2020 /  Forester XT 2004-2008 (Thermal Dispersant Black)
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GrimmSpeed Top Mount Intercooler - Subaru WRX 2002-2007 / STI 2004-2020 / Forester XT 2004-2008 (Thermal Dispersant Black)

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GrimmSpeed Top Mount Intercooler - Subaru WRX 2002-2007 / STI 2004-2020 / Forester XT 2004-2008 (Thermal Dispersant Black)

This is the Grimmspeed top mount intercooler that has been designed to provide maximum cooling efficiency with minimal restriction. Grimmspeed understands that because the top mount intercooler design is more prone to heat soak, they developed a solution that delivers performance while reducing intercooler temperatures to help prevent pre-detonation or knock which allows for more power and performance.

Grimmspeed designed this intercooler with two unique end tanks. The first end tank accepts the hot air charge from the turbocharger and feeds the air into the intercooler core. The second end tank receives the cooled charged air from the core and delivers it into the throttle body. These end tanks are precision cast and machined, and the intercooler core will have a bypass valve flange that is milled flat and will come with stainless steel studs that are permanently installed to ensure that the aluminum threads don't become damaged. These end tanks are welded to a high-density bar and plate intercoolers before the entire assembly is pressure tested, cleaned and sealed just before shipment. 

**The intercooler core will come in a black powder-coated finish for those of you who want the cleaner, streamlined stealth look in your engine bay.**


  • 04-05 Forester XT requires an STI BOV and STI BOV recirculation hose.
  • WRX and Forester XT models will need OEM STI or GrimmSpeed Y-Pipe Kit
  • Splitter is sold separately

*Pictures used for marketing purposes only, actual products may vary

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Returns Policy

Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new. Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.

Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.

Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.

Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.

Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.

Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.

You can simply contact us via email / telephone for a live inventory check

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