Our long-term customer and friend Chris shipped his baby all the way from California for Jorge’s magic touch. We installed our extremely popular Purple Belt Performance Package with Mace Stage 1 valve springs, titanium retainers and camshafts. First tune was fully automatic flex fuel, which ranged from 472 whp on 91-octane pump gas up to 573 whp on E60 or higher. Kill Tune is safe from E60 to E70 and put down a fantastic powerband peaking at 606 whp and 624 wtq.

Craig from New Jersey shipped his ATS-V in for the complete Brown Belt Performance Package treatment. Jorge worked his magic with the parts, then Craig flew in to meet us on dyno day. Nine pulls later the car produced peak power of 683 whp and 659 wtq. This ATS-V made a bit less power than we usually see with the well respected Caddy Issues turbos, since Craig still runs catted downpipes. Regardless, he had no trouble breaking into the list of the top 25 most powerful ATS-Vs ever!

John from Toledo came by our shop in his 2014 CTS-V Sport. We changed his engine oil and filter, replaced the leaking intercooler fill port, then filled and bled his intercooler system. We worked up a custom tune on our DynoJet, for net gains of 34 whp. Air/fuel and boost curves are much nicer now, and the electronic throttle stays completely open too!

Our good friends at Exodus Performance in Austin, Texas just knocked out another Blue Belt Performance Package, with this one using EPA approved catalytic converters. Mike’s car was a very rare 2019 ATS-V M6, of which only 21 were produced! As always, Exodus did a great job with the installation and the car put down a very broad powerband.

This anonymous canyon carver from a neighboring state showed up today with a 2016 ATS-V. His intercooler wasn’t working due to an air pocket, so we installed our intercooler fill/bleed kit. Also gapped down some fresh spark plugs and tuned the car with intake, exhaust and everything else completely stock. Final numbers were impressive with peaks of 497 whp and 489 wtq SAE corrected. This car is going to be even more fun than before with its newfound powerband!