Constructed of black 5-ply silicone, the COBB Turbo Inlet is a direct replacement for your 2008+ STI! The custom silicone construction of the COBB Turbo Inlet rejects high engine bay temperatures and keeps the intake air closer to ambient temperature. The steel wire reinforced design eliminates the issue of hose collapse that other inlet hoses suffer under vacuum at peak demand, yet allows adequate flex between the engine and the intake. The COBB inlet pipe is quite a bit bigger and longer than the standard inlet pipe. It is designed this way for a variety of different turbocharger and intake setups. Trim for best fitment within your needs.