HKS [Subaru Impreza(2008-2009)] Racing Suction Reloaded Kit

Vehicle specific suction pipe design. Angle and length of pipe are for enhanced induction efficiency. It is effective for quick response for NA engines and higher performance for turbocharged engines.

With stock suction system, induction air hit to corrugated portion of hose and makes swirl and resistance. The specially designed pipe reduces corrugated portion and gap inside pipe to make air flow smoother.