Another 700 WHP monster! This ATS-V is sporting our Brown Belt Package and made 714 WHP in the summer heat (102 degree’s in the shop!), still running stock compressor inlets. There’s more on the table for this customer when he’s ready!

Brian drove his super clean CT4-V Blackwing to the Tapout shop all the way from Florida so he could spice things up a bit. He decided to start with our Blue Belt Package using the JB4 tuner. These mods along with the JB4 allowed his Blackwing to pick up 100 whp from stock! Brian plans to upgrade to a higher Performance Package as well as custom tuning with HP Tuners, but this first round of mods has got him off to the races!

Our friend Jason has been continually improving his daily driver ATS-V every year, and 2024 is no exception. As impressed as he was with Purple Belt power, it never hurts to have a little more. After driving his car from Chicago to the Tapout Tuning shop, we installed our complete Brown Belt Performance Package. We also added some extra goodies like a full set of DeWitt’s intercooler heat exchangers to help out with the track day’s Jason enjoys.

After completing our in-house dyno tuning, Jason’s car put down 720 whp; nearly 100 whp more than he made with the Purple Belt Package!

Our friend Franz has been to the Tapout Tuning shop many times before and this time he was back to push his Brown Belt ATS-V even further. The last time he was here, we had the boost dialed back a bit to keep his Stage 1 LPFP within a completely safe operating range. He does not run methanol injection, so we have less fuel to work with in his application. To remedy that, we installed a DSX Auxiliary LPFP so we could safely push his turbos further than before.

While he was here, he also had us install the ATI Super Damper for even more quality and protection. After completing the tuning on the dyno, Franz’s car put down a very strong 756 whp. This car is a riot to drive especially as an M6 car!

Sam volunteered to be the very first CT4-V Blackwing Corsa exhaust customer and was excited to have us complete some additional modifications at the Tapout shop. We appreciate him allowing us to have his car for several weeks while Corsa got the first cat-back system installed on his car! After we got his car back to our shop, we installed our intercooler fill/bleed kit, a JB4, and colder spark plugs.

His baseline whp numbers on our DynoJet were 382 whp which is on the lower end of what these cars typically make from the factory, but we have seen other cars in this range as well. After installing our parts and massaging the JB4 settings on the Dyno, Sam’s car put down 446 for an impressive 64 whp gain!

Not only that, but the Corsa exhaust looks absolutely fantastic, and sounds even better!