About this product
When you increase boost or push your Subaru harder, the stock TMIC quickly heat-soaks and loses efficiency. The GrimmSpeed TMIC is engineered to deliver maximum cooling with minimal restriction, giving you denser air, reduced knock, and consistent performance pull after pull.
Quick Specs
- Smooth-flow end tank design
- Machined throttle body connection and precision-machined flanges
- Permanent-mold cast end tanks for superior strength and perfect repeatability
- High-density, high-flow bar-and-plate core
- Stainless steel threaded inserts
- Pressure-tested to 50 psi
- Includes GrimmSpeed inlet and BPV gaskets
Design & Core Performance
Using 3D scans of the OEM TMIC, GrimmSpeed engineered a custom core and end tank layout to maximize cooling while keeping pressure drop extremely low. The result is a well-balanced intercooler designed for Subarus making up to 550–575whp, flowing over 1500 CFM, and resisting heat soak far better than stock.
Premium Permanent-Mold End Tanks
Unlike typical sand-cast aftermarket tanks, permanent-mold castings allow tight tolerances, smoother internal surfaces, and greater strength. Each tank is CNC-machined for flawless sealing and optimal airflow.
Performance Testing
On a 2.0L TD04 setup at 19 psi:
- Pressure drop averaged only ~0.1 psi
- OEM TMIC efficiency falls off after 3800–5000 rpm
- GrimmSpeed TMIC maintains stable outlet temps and refuses to heat-soak
Includes:
- GrimmSpeed Top Mount Intercooler
- GrimmSpeed Bypass Valve Gasket
- GrimmSpeed STI TMIC Y-Pipe Gaskets (Pair)
- 36-inch Long 1/2" PCV Hose
- 1/2" Tee Fitting
- 1/2" Hose Connector
- 4x Black M8x1.25-18mm Y-Pipe Bolts
- 2x M8x1.25-25mm Bypass Valve Bolts
- GrimmSpeed Stencil
Installation Instructions
Description supplied by Subimods.com through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
