Calibrated Power Stealth Mach 1 (64) Drop In VGT Turbo | 2017-2023 L5P

Stealth Mach 1 64mm VVT Turbo for L5P Duramax (2017-2023)

The Stealth Mach 1 for 2017-2023 L5P Duramax trucks is a versatile, stock-appearing drop-in turbo. Designed for towing, daily driving, and performance, it delivers fast spool-up, strong EGT control, and airflow to support up to 700 HP. Supersedes DM1JK1070203000 and DM1MO1070203000.

Key Features

• Airflow supports up to 700 HP
• Up to 650 RWHP with emissions-compliant tuning + basic mods
• 64mm 11-blade billet (2618 alloy) compressor wheel
• 70.4mm 9-blade 713C nickel alloy turbine wheel
• HFV (High Flow Vane) Technology
• 74 lbs/min airflow (vs 60 lbs/min stock)
• 41 PSI boost capability
• Fully functional exhaust brake
• Direct bolt-on, stock-appearing design
• No core charge (brand new turbo)
• Actuator sold separately

Benefits

• Quick spool-up with strong throttle response
• Lower EGTs under heavy load and towing
• Surge-resistant even when lugging or towing
• Improved boost-to-drive pressure ratio
• Excellent balance of performance, drivability, and towing capability
• Distinctive turbo whistle and exhaust tone
• HFV Technology: Custom vane system allows larger turbine and improved airflow
• Compressor (64mm): Wide efficiency range for towing without surge
• Turbine (70.4mm): Lower drive pressure and improved high-load efficiency
• Optimized Flow: Increased airflow and reduced backpressure for better overall performance

Fitment

• 2017-2022 Chevrolet Silverado 2500HD/3500HD
• 2017-2022 GMC Sierra 2500HD/3500HD
• 6.6L L5P Duramax