Stealth Mach Hybrid 63mm Turbocharger

The Calibrated Stealth Mach Hybrid turbocharger is a specialized, stock-appearing direct replacement for 2011-2016 Chevrolet Silverado and GMC Sierra models featuring the 6.6L LML Duramax diesel engine. This unit incorporates the internals of Calibrated Power's Mach 2 turbo but uses a smaller 63mm Air Grabber compressor wheel, creating an optimized primary compound turbo. It is ideal for competitors limited to a 64mm compressor wheel who aim to maximize top-end performance. While the Mach 2's High Flow Vane (HFV) technology and larger turbine wheel may not be optimal for low-end power or spool-up, their increased flow directly enhances top-end performance. This improved flow is also beneficial for passing exhaust gas energy to a secondary turbo in a compound setup, aiding in EGT management under load. The Stealth Mach Hybrid's design stems from DuramaxTuner's extensive calibration experience with the LML Duramax platform, understanding its response to tuning, airflow changes, and power increases. It features a 63mm, 11-blade extended tip billet compressor wheel designed for airflow to support up to 650 rwhp (Dynojet) or 600 rwhp with emissions intact and tuning. The 70.2mm, 10-blade 713C nickel alloy turbine wheel is 10% larger for increased airflow and lower EGTs, contributing to the signature Stealth turbo whistle. HFV technology, with taller and wider vanes, reduces turbine nozzle restriction and improves exhaust-flow dynamics, while the machine-ported exhaust housing enhances flow. It includes a 360˚ thrust bearing and heavy-duty journal bearings for enhanced durability compared to stock. The product comes with a 1-year warranty and direct customer support. It replaces OEM part numbers 848212-5002S, 12642314, 12642129, 800799-0002, 800799-0003, GT3788VA, and Garret 3788, and supersedes model DM1DH1070802000.