HKS 34998-BF001 Up-Pipe ([Subaru Impreza(2002-2005)] ; Off-Road Use Only; for Stock Turbo; Polished Stainless Steel) HKS products are designed to be user friendly for easy installation HKS has been synonymous with "performance" in the automotive aftermarket industry for the past 35+years HKS delivers quality and performance with exceptional results