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2020 C8 Corvette Stingray
Image Via GM.

Is the wait over for being able to successfully tune the encrypted ECU of the C8 Corvette, and other GM vehicles like the Cadillac CT5-V Blackwing and 2022 Chevrolet Silverado? If you’re paying attention to Trifecta Performance, it would appear that the answer is a “yes.” Compared to the techniques from other aftermarket companies to get the C8 Corvette to cooperate with extra power desired by customers, Trifecta Performance is said to not require a “piggyback” or any kind of interceptor ECU. This is being referred to as a “native” tune.

2020 2021 2022 2023 2024 Corvette Stingray LT2 V8 Engine
The LT2 engine. Image via Chevrolet.

C8 Corvette Native ECU Tune Claimed By Trifecta

Trifecta’s C8 Corvette ECU tuning announcement goes on to say the following:

“Native tuning opens up so many possibilities for not only making power adders work, but also making them work reliably, with OE level controls and diagnostics. Turbocharger builds can have octane scalar-based airflow limits enabled. Supercharger builds can limit boost based on incoming air temperature. And, instead of figuring out how to evade the OE diagnostics and safeguards, native tuning allows attention to be paid to recalibrating, or even enabling OE diagnostics that are otherwise disabled (e.g. enabling boost control diagnostics on a factory naturally aspirated calibration).”

With that said, Trifecta also noted that native tuning the C8 Corvette ECU won’t solve the limitations of the car’s various hardware, such as half-shafts, transmission clutches, or fuel system, but it will allow for correct torque management events to occur. Moreover, improving the output over GM’s calibration for the 6.2L LT2 V8 engine has proven to be marginal even with native tuning its ECU.

The company says that it adjusted the air/fuel ratio, ignition timing, DI fuel injection timing, DI rail pressure, and variable cam phasing angles. The dyno charts from the adjustment are pictured below. According to Trifecta Performance, The red line is stock calibration, the green like shows a power enrich (PE) ratio to 11.5 across the board. The orange line is with a PE ratio of 13.5, while the blue line represents the variable valve timing (VVT) tables zeroed out, with power dropping off hard in the high RPM range. As you can see, the output of the LT2 was barely improved from stock. As for adding forced induction, however, that’s likely a different story.

We reached out to Trifecta for comment, so we hope to learn more on this breakthrough soon.

Trifecta Performance C8 Corvette Native Tune Tuning ECU E99 Encrypted Dyno Chart

Written by Manoli Katakis

Muscle Cars & Trucks was founded by Manoli Katakis - an automotive media veteran that has been covering the latest car news since 2009. His journalism has uncovered dozens of major product changes, updates, plans, and cancellations long before automakers were ready to make things official.

Some highlights over the years of his reporting include the uncovering of the Zora trademark before anybody else reported on the coming of a mid-engine Corvette, as well as the dead-accurate reporting of the coming of the Chevrolet Colorado ZR2, two years before it hit the market, and even before the debut of the concept vehicle. This type of reporting has immediately continued here, with reports of the original seventh-generation Camaro plans being shelved, as well as what's in store for the Chevrolet Silverado.

Some of his work can be found on massive automotive media outlets, such as Motor1. He also has been a guest on the 910AM Radio Station with Detroit News auto critic Henry Payne, as well as the enthusiast-oriented Camaro Show podcast.

Over the years, Manoli has interviewed various automotive industry titans, leaders, and people that make things happen otherwise. These include figureheads such as GM CEO Mary Barra, GM President Mark Reuss, automotive aftermarket icon Ken Lingenfelter, Dodge firebrand Tim Kuniskis, along with various chief engineers of vehicles such as the Ford F-150 & Mustang, Chevrolet Camaro & Corvette, and many more.

At MC&T, Manoli is taking his journalism expertise, deeply planted sources, driving abilities, and automotive industry knowledge to new levels, covering more vehicles and brands than ever before. This is the place where you will continue to read groundbreaking stories about American performance vehicles, pickup trucks, and sport utility vehicles. Here is where you’ll also read insights and quotes from various automotive subject matter experts on the latest relevant products, as well as some of the latest official news from their manufacturers.

Fun facts: he also once beat Corvette Racing driver Tommy Milner in an autocross with a Chevrolet Bolt EV. The biggest vehicle he’s ever driven is a John Deere mining truck. Besides a go-kart, the smallest vehicle he’s driven has been a Hyundai i10. He’s also spent time in the cockpit of various American performance vehicle icons, including the fifth-generation Chevrolet Camaro Z/28, Dodge Challenger Demon, and Ford Mustang GT350R. He has reviewed dozens of trucks, SUVs, and performance vehicles over the years.

One of his favorite new vehicles on the market today happens to be the Chevrolet Colorado ZR2 Bison. He is also a card carrying member of the Sports Car Club of America, and regularly participates in Detroit Region autocross events.

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