Calibrated Power Stealth Mach 1 Turbo | 2004.5-2010 LLY, LBZ, LMM

Stealth 64 VVT Turbo for Duramax (LLY / LBZ / LMM)

The Stealth 64 VVT is a direct bolt-on upgrade designed to deliver quick spool-up, improved EGT control, and strong performance for daily driving, towing, and performance use. Built for LLY, LBZ, and LMM Duramax trucks, it extends the usable power range well beyond the limits of the factory turbo. Supersedes model DM16B1070202000.

Key Features

• Supports 650+ RWHP
• 63mm 11-blade extended tip billet (2618 alloy) compressor wheel
• 66.5mm 9-blade 713C nickel alloy turbine wheel
• 360° thrust bearing for durability
• Quick spool-up with strong midrange response
• Direct bolt-on replacement
• Enables turbine braking for towing

Benefits

• Extends power capability beyond stock (~530 RWHP limit)
• Improved EGT control under sustained load
• Better performance when towing heavy loads
• Wider, more usable powerband (up to ~650 RWHP)
• Excellent balance of drivability and peak power
• Matched compressor and turbine for optimal airflow and response
• Increased turbine flow reduces drive pressure
• Maintains fast spool while supporting higher horsepower

Fitment

• 2004.5-2010 Chevrolet Silverado 2500HD/3500HD
• 2004.5-2010 GMC Sierra 2500HD/3500HD
• LLY, LBZ, and LMM Duramax