GrimmSpeed Raw Aluminum Top Mount Intercooler for Subaru WRX

The GrimmSpeed GRM090070 top mount intercooler pairs a raw aluminum finish with a cross-flow bar-and-plate core, cast aluminum end tanks and TIG-welded construction. Its dedicated two-piece splitter directs air from across the factory hood scoop into the core, supporting charge-air cooling with a matched airflow path. Ships fast across Canada and the US.

Features

• Raw aluminum version, distinct from the optional black thermal dispersant coated kit.
• 13.1 × 10 × 3.75-inch cross-flow bar-and-plate core.
• Cast aluminum end tanks with machined splitter mounting features.
• TIG-welded construction.
• Reinforced five-ply silicone coupler connection.
• Integrated two-piece hood-scoop splitter.
• Plugged 1/8 NPT port in the outlet end tank for a future water/methanol installation.
• Reuses factory vibration-isolating mounts.

Specifications

• Brand: GrimmSpeed
• Part number: GRM090070
• Product type: Top mount intercooler kit
• Application: 2015–2021 Subaru WRX
• Chassis: VA
• Engine: FA20DIT
• Core dimensions: 13.1 × 10 × 3.75 inches
• Core construction: Cross-flow bar-and-plate
• End tanks: Cast aluminum
• Finish: Raw aluminum

Kit Contents and Compatibility

The kit includes the intercooler, two-piece hood-scoop splitter, throttle-body silicone coupler and clamps. The upgraded GrimmSpeed charge pipe is optional and sold separately. This is not a front-mount conversion or a water/methanol injection kit.

Installation Notes

Follow GrimmSpeed's installation instructions, including splitter installation and factory mount reuse. Check coupler seating, clamp positioning and clearances before tightening, then inspect the charge-air system for leaks. Keep the unused 1/8 NPT port sealed. Discuss calibration requirements with your tuner for the vehicle's complete modification package; no specific horsepower gain, temperature reduction or knock-prevention guarantee is made.

Ships fast across Canada and the US.