The M178 W.2 Package is a complete package designed to achieve the most power as safely and reliably as possible while retaining the factory turbochargers. The package consists of our M178 ECU Upgrade, M178 Downpipe and Midpipe Upgrade, and High Flow Air Filters which create significant power gains as seen in the dyno graph above. ?With the midrange torque increasing by 176 WTQ at some points paired with the aggressive exhaust note, the M178 W.2 Package will catagorize your AMG GT-S above its weight class.
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