2001-2004 Duramax LB7 Stealth Mach 2 Turbocharger (CPS200368)

Description

Fits

Year	Make	Model	Engine
2001-2004	Chevrolet/GMC	Silverado/Sierra 2500HD/3500HD	6.6L LB7 Duramax

The Stealth Mach 2 Turbo is an upgraded direct replacement turbocharger for 2001-2004 Chevrolet Silverado and GMC Sierra HD trucks with the 6.6L LB7 Duramax diesel engine. Designed around a custom 67mm compressor wheel, this turbo is built to maximize peak power while maintaining a wide, usable powerband for strong street performance.

With a high-flow turbine assembly, anti-surge compressor cover, upgraded center section, 360-degree thrust bearing, and updated wastegate, the Stealth Mach 2 delivers serious airflow while helping reduce drive pressure and control EGTs under heavy load.

Part Number: CPS200368

Supersedes: DM1351070303000

Features

• 800HP peak power potential
• Direct fit for 2001-2004 6.6L LB7 Duramax trucks
• Dyno proven performance
• Custom billet compressor wheel
• Stealth high-flow turbine assembly
• Engineered anti-surge compressor cover
• Stock-appearing design
• Quick spool-up
• Wide torque curve

Notes

• Does not fit California emissions-equipped trucks
• Recommended supporting upgrades include the LB7 Stage 3 high-flow intake bundle
• Higher power levels require proper supporting modifications

Additional Info

Billet Compressor Wheel

• Custom 67mm compressor wheel is designed to maximize peak power
• Maintains a wide, usable powerband for street drivability
• Designed for strong airflow in a stock-appearing LB7 turbocharger frame

Anti-Surge Compressor Cover

• OEM-appearing anti-surge ring nests in the factory compressor cover
• Designed to fit the larger compressor wheel while retaining stock-appearing fitment
• Helps support drivability and usable power delivery

High-Flow Turbine Assembly

• Largest turbine available in an IHI-style stock LB7 turbo frame
• Dramatically reduces drive pressure at high RPM
• Helps achieve a near 1:1 drive-to-boost pressure ratio
• Improves power production and EGT control under heavy load

Warranty

• One Year Limited

OE Replacement Part Numbers

• 8973077111
• 8971884545
• 97720748
• 97307711
• 766172-0001
• VIDR
• VIDQ
• VICU