James brought us his gorgeous Redfire 2003 Ford Mustang SVT Cobra to get the factory Eaton M112 breathing more efficiently! After Stiegemeier Porting Services performed their full Stage-VII service on the 1.8L supercharger — including supercharger casing, plenum, and throttle body — Louis reassembled the Terminator, and then she hit the rollers to get dialed in by Vlad via SCT X3.
Pre-work, she baselined at 425.83whp, and after the work and Vlad’s calibration, output jumped up to a repeatable 488.64whp! While the peak gains show 62.81whp, areas under the curve showed nearly 75whp increase. Solid gains from efficiency & calibration alone! Side note, we don’t have post-work torque gains to share, as our ignition pickup had issues during the runs.
