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2011-2016 Duramax LML Stealth STR Turbocharger (CPS200136)

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2011-2016 Duramax LML Stealth STR Turbocharger (CPS200136)

Description

Fits

Year Make Model Engine
2011-2016 Chevrolet/GMC Silverado/Sierra 2500HD/3500HD 6.6L LML Duramax


The Stealth STR Turbo takes stock turbo replacement to the next level for 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L LML Duramax diesel engine. Designed and tested to outperform the stock turbocharger, it helps lower EGTs in towing scenarios, increase boost on mildly tuned trucks, and maintain stock-like spool-up.

This turbo is a direct replacement for the factory LML Duramax turbocharger and does not require tuning, making it a strong option for stock trucks, box tuners, or custom-tuned setups. With added airflow, a lighter rotating assembly, and a unique 10-blade turbine sound, the Stealth STR delivers improved performance while keeping excellent daily drivability.

Part Number: CPS200136

Supersedes: DM1DH1070103000

Features
  • Proven to support up to 600 RWHP with stock emissions
  • Extra airflow to make 80-100 RWHP over tune-only setups
  • Works well with box tuners, custom tuning, or without tuning
  • Lower EGTs and better overall EGT control
  • Built to last with more durable components
  • Lighter rotating assembly than stock for lightning-fast spool-up and immediate throttle response
  • Loud turbo whistle from the 10-blade turbine
  • Zero surge, even when towing heavy loads
  • 61mm 7-blade extended tip compressor wheel
  • 10-blade high-flow turbine wheel with thicker fins
  • Ported exhaust housing for better flow
Additional Info

Compressor Wheel

  • 61mm 7-blade extended tip compressor wheel provides increased airflow over stock
  • Supports 80-100 RWHP gains over tune-only setups when paired with proper supporting modifications
  • Lightweight rotating assembly helps maintain fast spool-up and immediate throttle response

High-Flow Turbine Wheel

  • 10-blade high-flow turbine wheel provides a distinctive turbo whistle
  • Thicker turbine fins improve durability over the stock turbocharger
  • Designed to reduce drive pressure and improve EGT control under load

Ported Exhaust Housing

  • Ported exhaust housing improves exhaust flow
  • Helps support better high-load efficiency and lower average EGTs
  • Maintains stock-like spool-up for towing and daily driving
Warranty
  • One Year Limited
OE Replacement Part Numbers
  • 848212-5002S
  • 12642314
  • 12642129
  • 800799-0002
  • 800799-0003
  • GT3788VA
  • Garrett 3788
$1,720.20
2011-2016 Duramax LML Stealth STR Turbocharger (CPS200136)
$1,720.20

Product Information

Shipping & Returns

Description

Description

Fits

Year Make Model Engine
2011-2016 Chevrolet/GMC Silverado/Sierra 2500HD/3500HD 6.6L LML Duramax


The Stealth STR Turbo takes stock turbo replacement to the next level for 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L LML Duramax diesel engine. Designed and tested to outperform the stock turbocharger, it helps lower EGTs in towing scenarios, increase boost on mildly tuned trucks, and maintain stock-like spool-up.

This turbo is a direct replacement for the factory LML Duramax turbocharger and does not require tuning, making it a strong option for stock trucks, box tuners, or custom-tuned setups. With added airflow, a lighter rotating assembly, and a unique 10-blade turbine sound, the Stealth STR delivers improved performance while keeping excellent daily drivability.

Part Number: CPS200136

Supersedes: DM1DH1070103000

Features
  • Proven to support up to 600 RWHP with stock emissions
  • Extra airflow to make 80-100 RWHP over tune-only setups
  • Works well with box tuners, custom tuning, or without tuning
  • Lower EGTs and better overall EGT control
  • Built to last with more durable components
  • Lighter rotating assembly than stock for lightning-fast spool-up and immediate throttle response
  • Loud turbo whistle from the 10-blade turbine
  • Zero surge, even when towing heavy loads
  • 61mm 7-blade extended tip compressor wheel
  • 10-blade high-flow turbine wheel with thicker fins
  • Ported exhaust housing for better flow
Additional Info

Compressor Wheel

  • 61mm 7-blade extended tip compressor wheel provides increased airflow over stock
  • Supports 80-100 RWHP gains over tune-only setups when paired with proper supporting modifications
  • Lightweight rotating assembly helps maintain fast spool-up and immediate throttle response

High-Flow Turbine Wheel

  • 10-blade high-flow turbine wheel provides a distinctive turbo whistle
  • Thicker turbine fins improve durability over the stock turbocharger
  • Designed to reduce drive pressure and improve EGT control under load

Ported Exhaust Housing

  • Ported exhaust housing improves exhaust flow
  • Helps support better high-load efficiency and lower average EGTs
  • Maintains stock-like spool-up for towing and daily driving
Warranty
  • One Year Limited
OE Replacement Part Numbers
  • 848212-5002S
  • 12642314
  • 12642129
  • 800799-0002
  • 800799-0003
  • GT3788VA
  • Garrett 3788