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The Mercedes-AMG GLC63 S shares the same hand-built M177 4.0-litre twin-turbo V8 found in the C63 S and E63 S — but it sits inside a heavier, taller SUV chassis with full-time 4MATIC all-wheel drive. A Stage 3 turbo upgrade on the GLC63 pushes the M177 to 800 HP on pump fuel, transforming the family SUV into one of the fastest all-wheel-drive trucks on the road. The build path is nearly identical to the C63 Stage 3, but the GLC63's weight, thermal characteristics, and drivetrain layout demand specific attention to intercooling and heat management that sedan owners can afford to...

The Mercedes-AMG E63 S W213 is the sleeper king of the M177 engine family. With 603 HP from the factory, 4MATIC+ all-wheel drive, and a pair of twin-scroll turbochargers feeding the 4.0-litre V8, the E63 is already one of the fastest sedans ever built. But the M177 platform has serious headroom. A Stage 3 turbo upgrade pushes the E63 W213 into 800–1,000+ HP territory — turning an executive sedan into a quarter-mile weapon that embarrasses dedicated supercars while carrying four passengers and a full trunk. Why the E63 Is Different — Twin-Scroll Turbo Architecture The E63 W213 does not share...

Why Stage 3 Is the Real Power Threshold on the M177 The Mercedes-AMG C63 W205 runs the M177 4.0-liter twin-turbo V8, and in factory form it delivers between 469 HP (C63) and 503 HP (C63 S). Stage 1 and Stage 2 ECU tunes push that number to roughly 550-700 HP by optimizing boost maps, fueling, and ignition timing. But once you want 800 HP or more, the factory turbos become the bottleneck. They simply cannot flow enough air. A Stage 3 turbo upgrade replaces the factory IHI turbochargers with larger, purpose-built units featuring billet compressor wheels, Inconel turbine wheels, and...

Best Lamborghini Aventador upgrades under $5,000 — ECU tune, exhaust mods, and intake for the 6.5L V12. Top 5 bang-for-buck performance mods ranked by YPG Motorsport.

Porsche 992 GT3 exhaust upgrade guide: Tubi Style, Akrapovič and aftermarket options compared. Sound clips, power gains and what to expect from the 4.0L flat-six at 9,000 RPM. Buyer's guide from YPG Motorsport.