GrimmSpeed TMIC Dyno Duct - 02-07 WRX / 04-18 STi
Fits These Applications:
2004-2018 Subaru STi *
2002-2007 Subaru WRX *
(* Fits with Grimmspeed TMIC *)
The GrimmSpeed Top Mount Intercooler (TMIC) Dyno Ducts are intended for use on a vehicle that's being dyno tuned to help simulate naturally driven air flow.
As your car moves through the air on the street, your hood scoop collects a massive amount of air. This is quite difficult to simulate on a dyno without the proper equipment, so the GrimmSpeed engineering team decided to design these ducts for use during product testing.
This duct is designed to fit the GrimmSpeed Top Mount Intercooler specifically. It may fit others with or without modification. For a more universal fitment, consider using the 2015+ WRX TMIC Dyno Duct, which may not be exactly the correct size, but does mount flat.
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