GrimmSpeed 02-07 WRX Top Mount Intercooler - Manual (Page 14)

Figure 22: Tighten Clamps
17. Now, reinstall your bypass valve using the stock fasteners. Make sure to also
use the included gasket to ensure a perfect seal. Get things snug, but no need
to go crazy. On some drive by cable vehicles, the recirculation port and your
throttle body may be a very tight fit. This is to ensure that there’s plenty of
clearance for larger valves with the intake manifold and hood.
Tighten Clamps
Install 12mm Bolts
Gasket