We recently dyno tuned a 2016 ATS-V with intake, downpipes, mid-pipes and a competitive company’s tune.  The customer had been led to believe that his car was producing 502 whp.  Using the industry standard DynoJet 424x for the most precise, repeatable data, we found that his car was only producing 427 whp.  Even worse was the shape of the curves, as seen in the blue lines.  The boost, horsepower and torque curves each had six or seven distinct peaks.  We restarted from scratch and produced a beautiful tune.  Peak power increased by 50 whp and torque was up more than 100 foot-pounds at 3,500 rpm.  We believe this is the proper way to tune an ATS-V and we have the documentation to show the customer what they’re getting.