Trifecta Cadillac CT4-V Blackwing Tune Won’t Break Anything, Probably

For the past few weeks, GM Authority has covered the new ECU flash tune available from Trifecta Performance for the Cadillac CT4-V Blackwing, which boosts power from the high-performance four-door despite the fact that the Caddy is running GM’s latest Global B electronic architecture. Critically, the new Trifecta Performance tune won’t interfere with any of the onboard electronic features equipped from the factory.

In a recent interview with Owner, Founder, and Engineering Director at Trifecta Performance, Vince Geglia, GM Authority Executive Editor Alex Luft asked if the Trifecta Performance tune for the Cadillac CT4-V Blackwing breaks any of the onboard feature, such as the four-door’s active safety systems or OnStar.

“We have not observed any problems of that sort,” Geglia told GM Authority. “We have a couple development vehicles, one of them has been running on a modified ECU for several months and it still gets over-the-air updates and OnStar still works. There hasn’t been any issues yet.”

Critically, Geglia says that the new tune doesn’t affect GM’s dealer updates or over-the-air updates either.

“Some of the other ECU modifications that exist are very upfront and say ‘Once you do this, you’re not going to be able to flash this thing with factory tools anymore,’” Geglia told GM Authority.

Given the Cadillac CT4-V Blackwing is running the Global B architecture, which features high-level encryption that makes it challenging for tuners to modify, the fact that Trifecta Performance can coax even more power from the Cadillac CT4-V Blackwing using the factory ECU is impressive. However, that’s doubly so given the process does not negate any of the factory systems or features.

As a reminder, the Cadillac CT4-V Blackwing is motivated by the twin-turbocharged 3.6L V6 LF4 gasoline engine, which is rated from the factory at 472 horsepower and 445 pound-feet of torque. Underneath the body panels, the CT4-V Blackwing rides on the GM Alpha 2 platform, with production taking place at the GM Lansing Grand River plant in Michigan.

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