Timothy from Georgia just purchased a used ATS-V. It already had a competitor’s tune and was only making 6 pounds of boost. After installing our intercooler fill/bleed kit the boost returned, but the car was misfiring under boost. Timothy scheduled an appointment with us and drove up to Ohio. We found that the spark plugs were gapped too wide and didn’t have any dielectric grease. Correcting the spark plugs resolved the misfire, but the intercooler fill valve/port was leaking. We see many failures of these, so of course we keep them in stock. Once the fill port was replaced we were able to get a baseline dyno run and found the car was making 458 peak whp. After our custom tuning, we increased this to 502 whp. Timothy loves how the car feels now, and is already planning to come back and visit us again for his upgrade to Purple Belt.

Earlier this spring Cesar dropped by Exodus Performance in Texas for a partial Purple Belt Performance Package. He was still running factory intake, throttle body and catalytic converters at the time and made 546 whp. This weekend Exodus added catless downpipes and strapped it back to the dyno. We continued dialing in the tune remotely and turned up the wick to 605 whp and 630 wtq. Next Cesar plans to have our carbon fiber intake and Gigs ported throttle body installed, so stay tuned.

Last year Michael from Indiana stopped in for our Blue Belt Performance Package. This year he brought his M6 car back for an upgrade to Purple Belt. The result was a very smooth powerband peaking at 608 whp and 610 whp, running E49 fuel, and still using the factory airbox. We plan to see Michael again next year when he steps up to Brown Belt and joins the 700 whp club.

Kevin drove down from Michigan with his very clean 2015 CTS-V Sport. We installed our intercooler fill/bleed kit, Brisk spark plugs and performed a custom dyno tune. The White Belt Performance Package results were nicely improved WOT fueling, more horsepower and increased torque from 2,800 rpm on up!

Our good friend Paul from Ohio recently purchased a beautiful 2018 ATS-V A8 sedan with only 10,000 miles. With temporary tags still on the car, we installed our Purple Belt Performance Package. A few months later we added the new Tapout carbon fiber cold air intake and did some additional fine tuning. Current results are 638 whp and 681 wtq (SAE) and 650 whp and 694 wtq (STD). Check out how this car has progressed since it’s first visit to Tapout headquarters:
• Previous tune in Tour mode = 364 whp and 421 wtq on 93 octane pump gas
• Previous tune in Track mode = 372 whp and 420 wtq on 93 octane pump gas
• Flashed back to stock tune = 391 whp and 424 wtq on 93 octane pump gas
• Purple Belt Performance Package with K&N filters = 518 whp and 561 wtq on 93 octane pump gas
• Purple Belt Performance Package with K&N filters = 569 whp and 575 wtq on E42 fuel
• Purple Belt Performance Package with K&N filters = 614 whp and 645 wtq on E60 fuel with some additional boost and timing advance
• Purple Belt Performance Package with Tapout cold air intake and more tuning on E60 fuel = 638 whp and 681 wtq
• Became first ever ATS-V to run nine second quarter mile passes in the True Street category!