Darren from Ohio picked up a beautiful CT4-V Blackwing M6 car with the carbon fiber appearance packages. We added our White Belt mods and tuning, and he ended up with 475 peak whp. Now the car has a powerband that matches it’s handling and looks.

Scott brought his bone stock 2018 ATS-V coupe in for the Purple Belt treatment plus Aeroforce scan gauge and WOT Box. He left two days later with a nicely symmetrical 600 whp and 600 wtq and textbook perfect fueling.

Last year Jason from Texas worked with Exodus Performance to install our world renowned Purple Belt Performance Package. His very first quarter mile pass was 9.99 @ 136 mph at full weight. This year he decided to turn it up with the addition of Caddy Issues turbos. The new powerband peaks at 713 whp and 702 wtq. We can’t wait to see what Jason runs at the V-Racing Invitational this spring. By the way, check out the picture perfect WOT air/fuel ratio on this car!

Jason’s mechanic had somehow cross threaded one of his spark plugs, causing a constant misfire on one cylinder. Turned out that he was looking for an excuse to ship the car in from Florida for custom dyno tuning anyways. We used the borescope to make sure everything inside the cylinder was healthy, then replaced the damaged spark plug threads using Heli-Coil. After a test drive and data scan verified everything was good to go, we got to work on the dyno. End result was 599 whp on E55 fuel. However, we had to keep a relatively short leash on the boost, since this Purple Belt car was still running the factory HPFP with no upgraded internals.

Last year Kaylee and Jonathan drove more than 1,000 miles from Texas for our Blue Belt Performance Package. This week they upgraded to Purple Belt using the soon to be released Tapout Tuning module. This unit produces a much smoother powerband than any other tuning device for these cars. And it stores seven different calibration maps, that can be switched on the fly in just a few seconds using the no charge cell phone app. Here were the final results:

• OEM baseline = 426 whp on 93-octane
• P1 = 445 whp on 93-octane
• P2 = 500 whp on 93-octane
• P3 = 510 whp on 93-octane
• P4 = 520 whp on 93-octane
• P5 = 584 whp on 93-octane with methanol injection
• P6 = 599 whp on 93-octane with methanol injection
• P7 = 619 whp on 93-octane with methanol injection (see attached dyno chart)

Kaylee and Jonathan now have the most powerful CT4-V Blackwing in the world, except for our flagship car.

Check them out on the CT4-V Blackwing Dyno Rankings HERE!