Weistec M156 6.3L Power Package 1
The M156 Power Package 1 is an efficient and effective package for those looking for improved performance. The package consists of our M156 ECU Upgrade, High Flow Air Filters, and ROW Aiboxes which all work together to maximize performance.
*Product may not be emissions compliant. Check local laws prior to installation.
Increased HP and Torque
Improved Throttle Response
Eliminated Top Speed Limiter
Optimized Fuel and Spark