This customer had us send in his CT4-V Blackwing ECM to HP Tuners for unlocking services so he could upgrade to our Purple Belt Performance Package. However, he already had our Blue Belt Performance Package parts installed so we strapped his M6 Blackwing to the Dyno to see what kind of power we could make with just the Blue Belt parts. The results were impressive!

We recently worked with 1:1 Tuning in Maryland to remote tune Joe’s 2022 CT4-V Blackwing. This car was completely stock except for spark plugs and downpipes. Baseline power was 407 peak whp and after remote tuning he had 487. Even more impressive is the 110 whp gain at his current WOT upshift point of 6,300 rpm. We look forward to continuing to develop the tune on this car as he installs more mods and adds some ethanol fueling to the mix.

Steven from Ohio decided to upgrade from Blue to Purple Belt now that we have HP Tuners access to the Global B ECMs. The results speak for themselves. He doesn’t just hit his peak power number for 50 or 100 rpm. Instead, his car now carries 600 plus whp all the way from 5,200 to 5,900 rpm. No other tuning company come close to the LF4 knowledge and experience of Tapout, and that’s why our powerbands are simply the best.

Another week, another Purple Belt Performance Package installed by the team at Exodus Performance. David upgraded from Blue to Purple Belt, and was able to put down an impressive 603 whp, even in the Texas heat. How’s this for a picture perfect tune!?

Franz shipped his M6 Purple Belt ATS-V to the Tapout Tuning shop so he could upgrade to the Mace Stage 1 cams, springs and retainers. After completing the dyno tuning, Franz’s car produced an incredible powerband making 608 whp! Even more impressive is how strong his powerband is past 7,000 rpm! This car is going to be an absolute riot to drive on the street and we know Franz is going to have a very fun ride home. #savethemanuals!