Dustin and Dominique drove in from Indiana for the Purple Belt treatment.  Two days later their 2016 ATS-V coupe left with 613 whp and 644 wtq.  The powerband was solid as usual, and WOT fueling looks like it was drawn with a ruler.

Two years ago we tuned Randy’s CTS V-Sport and he picked up nearly 100 whp in some parts of the powerband.  Last year when he purchased a beautiful ATS-V, he drove in from Kentucky to have us work our Blue Belt magic while the temporary tags were still on the car.  This year we upgraded him to Purple Belt and he put down a respectable 614 whp with stock turbochargers.  Next we installed TPC turbos and the power increased to 635 whp.

Matt and Sarah drove in from Michigan for some work on their 2022 CT4-V Blackwing A10.  We installed our Blue Belt Performance Package, and did regular maintenance at the same time.  Originally they had some poor quality fuel from an obscure gas station and the car would only make 485 whp.  We topped off the tank with some 93-octane from our local gas station and were then able to build a really nice, broad powerband peaking at 535 whp.

Dave just purchased a beautiful new Argent Silver 2023 CT4-V Blackwing M6.  He flew from the west coast to New York to pick up the car, then drove it to our shop in Ohio for the proper break-in mileage.  We upgraded him to our very popular Blue Belt Performance Package, and changed the engine oil and filter too.  His powerband looks fantastic like usual, making 527 peak whp on 93-octane.  We also set Dave up with 91 and 100-octane tunes, which he can switch to within a couple minutes using HP Tuners.

Kyle and McKenna dropped off their completely stock ATS-V.  Two days later they picked it up with another 100 whp.  And just like that, another Blue Belt Performance Package is on the road delivering maximum smiles per gallon!