There are two primary considerations in the design of an intercooler: maximum heat transfer and minimum pressure drop. Unfortunately, one causes the other, so finding a perfect balance requires a detailed understanding of the intended application, some serious engineering power and the highest quality manufacturing processes. Fitment and quality are also critically important to ensure that the most safety-critical part of your turbo system is up to the task every time your foot hits the floor. We began by laser scanning an OEM TMIC to plot the mounting points and space claim in CAD with pinpoint accuracy. At the same time, we designed a custom bar and plate core with overall dimensions, fin density and fin types that would provide the insane heat transfer area we require with minimal flow restriction. GrimmSpeed Top Mount Intercooler Kit 4-21 Subaru STI 02-07 WRX with core size nailed down, we got to work designing end tanks that offered smooth flow, perfect fitment and even distribution of the hot charge air through the core. Countless revisions were tested in flow simulation before we finally found exactly the characteristics that we wanted. From there, 3D printed prototypes were used to confirm fitment and we began work on manufacturing details in preparation for verification testing and production.
 
INCLUDED:
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
FITMENTS:
2002-07 Subaru Impreza WRX
2004-21 Subaru Impreza STI
2004-08 Subaru Forester XT
 
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