The first and key hardware upgrade for all tuned BMW F series vehicles with N55 and N20/N26 engines is the front mounted air to air intercooler.
Raising boost past stock on the OEM intercooler results in the DME (engine computer) to reduce power by reducing ignition timing due to increases in IAT (intake air temperature) and associated knock levels.
This PTF front mounted intercooler features over twice the internal volume compared to the stock intercooler while also outflowing the stock unit by almost 20%. Intercooler features 9 charge rows in the lower section and 6 in the top stepped portion along with CFD designed end tanks that include a vane to efficiently direct airflow into its core.
Fitment for the following BMW F series vehicle models:
This intercooler is direct replacement for the following BMW OEM part numbers: 17517600531, 17517618809, 17517600533