The Mishimoto Performance intercooler kit for 2013–2018 Ford Focus ST replaces restrictive piping with mandrel-bent aluminum and wire-reinforced silicone, removes the turbo muffler and enlarges flow paths. The bar-and-plate intercooler core and upgraded piping increase flow—21% net to/from the intercooler and 26% on the hot-side—improve heat dissipation, and, when combined with other parts, add about 8 HP and 10 lb-ft. Lifetime warranty applies.
Mishimoto 2013+ Ford Focus ST Black Intercooler w/ Black Pipes