2017-2023 Duramax L5P Stealth Mach 1 Turbocharger (CPS200275)

Description

Fits

Year	Make	Engine
2017-2023	Chevrolet/GMC HD	6.6L L5P Duramax

The Stealth Mach 1 64 Turbo is an upgraded direct replacement turbocharger for 2017-2023 Chevrolet Silverado and GMC Sierra HD trucks with the 6.6L L5P Duramax diesel engine. Also compatible with 2019+ L5D applications, this stock-appearing drop-in turbo is built for quick spool-up, strong EGT control, towing performance, and serious power potential.

With a custom billet compressor wheel, oversized custom 10-blade turbine wheel, and HFV High Flow Vane technology, the Stealth Mach 1 delivers a strong blend of performance, drivability, and towing capability. It supports up to 650 RWHP with emissions compliant tuning and basic supporting modifications, with 700+ RWHP verified in competition applications with extensive supporting mods.

Part Number: CPS200275

Supersedes: DM1JK1070203000, DM1MO1070203000, DM1JK1070203010, DM1MO1070203010

Features

• Up to 650 RWHP with emissions compliant tuning and basic supporting modifications
• 41 psi boost at sea level
• Custom 64mm 11-blade billet compressor wheel
• Provides 74 lbs/min mass airflow compared to 60 lbs/min stock
• Oversized custom 10-blade turbine wheel
• HFV High Flow Vane technology
• Retains factory exhaust brake function
• Quicker throttle response
• 100% stock-appearing drop-in design

Notes

• No core charge
• Actuator sold separately
• Custom tuning is strongly recommended for this turbocharger upgrade
• The factory L5P actuator has a low failure rate and can usually be retained unless actuator-related codes or known actuator damage are present
• Higher power levels require proper supporting modifications

Additional Info

Billet Compressor Wheel

• 64mm 11-blade compressor wheel is lightweight and high strength
• Wide efficiency range allows towing without risk of surge
• Provides 74 lbs/min mass airflow compared to 60 lbs/min stock
• Supports quick spool-up and usable horsepower for daily driving and towing

Oversized Turbine Wheel

• Custom 10-blade turbine wheel produces a distinctive exhaust sound
• Lowers drive pressure under high-load conditions
• Improves EGT control when towing or driving under heavy load
• Designed to work with the larger compressor wheel for improved efficiency

HFV High Flow Vane Technology

• Custom vane and nozzle ring assembly
• Taller and wider vanes match the larger turbine for superior high-load efficiency
• Improves efficiency compared to the stock nozzle ring
• Helps produce more power, quicker spool-up, and better EGT control

Drop-In Design

• Completely bolt-on and fits like the factory turbocharger
• Retains factory exhaust brake function for towing
• Designed for daily driving, towing, street performance, and competition-focused builds

Warranty

• One Year Limited

OE Replacement Part Numbers

• 12709701044
• 11547786
• 12683985
• 12689094