The M157 W.1 Package is provides an excellent starting point for extracting more power from the M157 Biturbo engine. The package consists of our M157 ECU Upgrade, High Flow Air Filters, and M157 Racing Spark Plugs. The ECU Upgrade and the High Flow Filters create significant power gains while the Racing Spark Plugs are designed to handle the increased heat and pressure from the 100+hp gains.
