The COBB hard-pipe hot-side kit for 2016 and newer Subaru WRX STI replaces the factory hot-side charge piping with a direct-fit hard pipe solution. Intended for the hot-side of the intercooler system, this kit is supplied to improve plumbing robustness and simplify turbo-to-intercooler routing for the specified WRX STI model years when used as part of an upgraded intake or intercooler setup.
Cobb 2016+ Subaru WRX STi Hard Pipe Kit - Hot Side