Calibrated Power LLY LBZ LMM (2004.5-2010) Stealth STR Turbo

Stealth STR Drop-In VVT Turbo for Duramax (LLY / LBZ / LMM)

The Stealth STR turbo is a direct drop-in upgrade for 2004.5-2010 Silverado and Sierra 2500/3500 Duramax trucks. It delivers improved spool-up, airflow, and durability while maintaining the simplicity and affordability of a stock replacement.

Key Features

• Supports up to 600 RWHP (Dynojet)
• Air Grabber 61mm billet compressor wheel (7+7 blade design)
• 67mm high-flow Inconel turbine wheel
• 11mm LML vanes for faster spool and lower drive pressure
• Precision-balanced rotating assembly
• Ported exhaust housing for reduced backpressure
• Capable of 40+ PSI boost
• No core charge

Benefits

• Faster spool-up and improved throttle response
• Lower EGTs and better airflow
• Excellent for daily driving, towing, or performance builds
• Works on stock or tuned trucks (no tuning required)
• Strong reliability with added durability over stock

Fitment

• 2004.5-2010 Chevy Silverado 2500HD/3500HD
• 2004.5-2010 GMC Sierra 2500HD/3500HD
• LLY, LBZ, and LMM Duramax