G-POWER reengineered the BMW M4 Competition Convertible into the G4M Bi-TURBO Cabrio by extracting much higher power from the 3.0-liter twin-turbo inline-six. The stock M4 Competition xDrive Convertible produces 523 horsepower and accelerates from 0–60 mph in 3.6 seconds. ECU tuning, a redesigned intake, an all-new Deeptone exhaust, and extensive software refinements raise output to 700 horsepower. Upgrades prioritize extreme acceleration, high top speeds, and a distinctive exhaust soundtrack while maintaining dependability and drivability. Visual enhancements include lightweight carbon-fiber components such as the GP-Venturi hood and GP-Shuriken front corners, plus GP-Hurricane RR forged wheels for strength and style.
In standard M4 Competition xDrive Convertible trim, this engine is no slouch, pumping out 523 horsepower and sprinting from 0 to 60 mph in just 3.6 seconds. That's impressive by any standard, but for G-POWER, it's only the beginning. Through a carefully engineered combination of ECU tuning, a redesigned intake system, an all-new Deeptone exhaust, and extensive software refinements, G-POWER has managed to push the same powerplant to a jaw-dropping 700 horsepower.
While the official performance numbers haven't been disclosed, anyone familiar with G-POWER's reputation knows what to expect: extreme acceleration, exhilarating top speeds, and an unmistakable soundtrack. The G4M is more than just raw numbers, though. It's about how those numbers are delivered. The upgrades are designed not only to maximize power but also to ensure dependability, drivability, and a refined driving experience.
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