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GSA33 4/6CYL (22mm)
coolant lines and turbo mounting gaskets
snow and sludge
Don't be fooled by K&N or dry filter hype and that they filter better and make more Horsepower or flow more air
But if you are running higher boost levels
Grimmspeed Top Mount Intercooler Hood Scoop Splitter Induction Hoses GSA33 4/6CYL (22mm)The Grimmspeed Top Mount Intercooler Hood Scoop Splitter maximizes incoming air and improves surface contact with your intercooler. It also brings in cooler, ambient air to lower intake charge temperatures and prevent heat soak. This results in improved efficiency and performance for current and future modifications. This splitter suits the 2002 2003 JDM STI Hood Scoop which is larger than the bugeye STI scoop but small than the 03 05 STI blobeye