Subaru Hot Pipe Kit WRX 2015-2018741500 H This pipe kit will connect the turbocharger compressor outlet to the passenger side of the COBB Front Mount Intercooler Core. This configuration is designed specifically around the COBB XLE BPV and may not be compatible with other bypass valves. Creating a custom Front Mount Intercooler Kit but need traditional hot side piping? Look no further than the COBB Subaru Hot Pipe Kit for your 2015 2017 Subaru WRX. Subaru Hot Pipe Kit WRX 2015 2018