The addition of a GReddy intercooler is one of the best ways to safely increase horsepower in a turbocharged engine. By reducing the engine's inlet temperatures, a denser air charge will enter the engine; this can make more horsepower at the same boost level and even more power at higher boost levels.
Additional Information: (CZ4A) 4B11 MIVEC F spec- Intercooler Type 33F core dim: 295x525x 100 mm Divided 70mm inlet and outlet endtanks (polished)