2025 Cadillac CT5-V Blackwing owner takes it to a tuner and nearly doubles its horsepower to a mighty 1000-HP

The 2025 Cadillac CT5-V Blackwing isn’t exactly lacking in the power department, but one owner decided ‘fast’ just wasn’t fast enough.

Instead of easing it into life with a gentle break-in, he drove his brand-new sedan straight to a tuner with fewer than 100 miles on the odometer.

After the tuning was complete, the brand-new car was turned into a fire-breathing monster.

Perhaps the craziest part is that it still looks as sleek and subtle as the day it rolled out of the showroom, despite its increased power.

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This is a very special Cadillac CT5-V Blackwing

The regular Cadillac CT5-V Blackwing is already a beast, being more powerful than a Lamborghini Huracán.

However, this isn’t just any Blackwing; it’s the Le Monstre Edition, a rare collector’s model Cadillac built to honor its motorsport past and the wild 1950s ‘Le Monstre’ race car.

Only 101 examples exist, and this particular one is number two.

From the outside, it’s dressed to impress in Magnus Metal Frost matte paint, Stormhawk Blue carbon fiber accents, and matching blue brake calipers.

Inside, there’s the same exclusive theme with special seatbelts, laser-etched door sills, and even a 3D-printed shifter medallion.

In other words, Cadillac made sure these cars looked special, although under the hood, they were still ‘only’ running the stock 6.2-liter supercharged V8 with 668HP.

That was more than enough for most people, with Cadillac claiming 0–60 mph in just 3.4 seconds and a 200mph top speed.

The owner intends to drive it rather than leaving it in his garage

But not for this owner.

He dropped his Le Monstre Edition off at Late Model Racecraft, who immediately tore into the heart of the supercar.

Out went the factory supercharger, in came a Magnuson 2650 blower, backed up by a bigger throttle body, cold-air intake, camshaft, fresh valve springs, and more goodies.

The once-mighty 668-horsepower setup is now a memory, replaced by 834 rear-wheel horsepower, which translates to roughly 1,000 brake horsepower.

All of it runs happily on 93-octane pump gas, meaning this car is every bit the daily-drivable monster the owner dreamed of.

And he actually plans to drive it, not content to leave it as a garage queen, unlike this Porsche 911 Speedster owned by Jay Leno’s neighbor.

In regular mode, it still behaves like a normal Cadillac, but switch into Track Mode and the exhaust unleashes a thunderous soundtrack that makes no secret of the beast within.

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