GrimmSpeed Top Mount Intercooler Dyno Duct Subaru WRX 2015-2021 | 090099 DelSol_1993-1997 Ultra Series Radiators are built

Ultra Series Radiators are built to withstand harsh elements as well as against years of under-hood heat cycling

and durability become critical under aggressive tuning

Roto-molded HDPE intake tube paired with oversized oiled cotton air filter

and finished in Gloss Bronze or Dark Metallic Graphite

Designed specifically for Subaru WRX applications

GrimmSpeed Top Mount Intercooler Dyno Duct Subaru WRX 2015-2021 | 090099 DelSol_1993-1997 Ultra Series Radiators are builtGrimmSpeed Top Mount Intercooler Dyno Ducts are intended for use on a vehicle that's being dyno tuned. 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 our engineering team decided to design these ducts for use during product testing. It quickly occurred to us that this might be a product that other shops and tuners would be