Calibrated Power Stealth Mach 1 (64mm) Drop-in Turbo | 2001-2004 LB7

Stealth 64 Drop-In Turbo for LB7 Duramax (2001–2004)

The Stealth 64 is a high-performance, stock-appearing drop-in turbo for LB7 Duramax trucks. Designed as a direct bolt-on replacement, it delivers up to 640+ RWHP with improved spool-up, lower EGTs, and excellent drivability for towing and daily use. Supersedes DM1351070203000

Key Features

• Supports up to 640+ RWHP
• 63mm 11-blade extended tip billet (2618 alloy) compressor wheel
• 66.5mm 10-blade 713C nickel alloy turbine wheel
• Larger, high-flow turbine matched to compressor
• Quick spool-up with wide torque curve
• Custom cut compressor cover and exhaust housing
• High-flow ported turbine housing
• 360° thrust bearing for durability
• Direct bolt-on, stock-appearing design
• Lower EGTs and improved efficiency

Benefits

• Improved power, towing performance, and throttle response
• Better boost-to-drive pressure ratio for efficiency
• Lower exhaust gas temperatures under load
• Reliable, daily-driver friendly performance
• Liquid-cooled design for added durability
• Ideal for daily driven trucks, towing applications, performance-based builds and more!

Fitment

• 2001-2004 Chevrolet Silverado 2500HD/3500HD
• 2001-2004 GMC Sierra 2500HD/3500HD
• 6.6L LB7 Duramax