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First there was LF3, then there was the LF4. The LF3 and the LF4 are exciting engines and represent some of the best technology GM has released to date. They share much in common, but there are also many features unique to each. One of the biggest differences are the turbochargers. Those used on the LF3 (designed to spin to 175,000 RPM) are smaller than those found on the LF4, and are designed to provide improved turbine acceleration (spool) at lower RPM to move the heavier CTS VSport. The LF4 turbochargers (designed to spin to 157,500 RPM), in contrast are larger, and designed to allow for greater peak power through improved flow through the larger turbine section at the expense of low RPM spool. This alone largely explains the differences in factory power provided by the LF3 and LF4. Additionally, the LF4 has features you'd expect to find in a track-destined application, such as titanium connecting rods, redesigned oil pan, and more resilient internal components to stand up to the most severe duty track service can dish out. But there are many similarities, one of the most blatant being that the LF3 and the LF4 share the same factory operating system. The three model years worth of LF3 experience built into TRIFECTA's custom operating systems and calibrations have been applied to, and extended for the LF4, and its specific application in the 2016+ Cadillac ATS-V. The TRIFECTA Advantage: Product Development Process From the high deserts to the low lying coastal areas, the frigid North, and the humid South, on public roads, and on race tracks, TRIFECTA's calibrations are developed and thoroughly tested using rigid protocols not unlike those used by auto manufacturers. Our fleet development vehicles have seen hundreds of thousands of miles of service, and countless hours on the chassis dyno. But how does it drive? One area that is given less concern by most is that of drivability. Most aftermarket calibrations shoot for more power. But what about making the vehicle drive better? As we get more and more gears, particularly in our automatic transmissions, improving the drivability experience (without sacrificing economy) becomes an increasingly complex problem to solve. Our specific drivability engineers spend thousands of hours behind the wheel, focused on chasing down any defects in the factory map while designing a thrilling experience without requiring more stops at the fuel station. TRIFECTA, in 20 minutes or less. TRIFECTA products utilize a flash-loader device that will re-calibrate (flash) your vehicle in approximately 20 minutes and always allow returning the vehicle to the stock calibration when needed. TRIFECTA customers always receive the latest factory software updates automatically, and when either factory software updates are made, or calibration updates are made, they are available to those product-specific customers at no charge. Pricing and availability to be announced.