Air and Fuel Superchargers, Turbochargers and Components

Duramax Tuner

Stealth Mach 2 VGT Turbocharger

$3,500.00

SKU: DUTDM1QQ1070303000

In Stock
In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Duramax Tuner Stealth Mach 2 67mm Drop-In VGT Turbo is the ultimate upgrade for 2024-2026 L5P Duramax engines, offering enhanced performance and easy tuneability. This turbocharger is engineered to supply airflow capable of supporting up to 750HP, with specific applications noting up to 625 RWHP with stock emissions equipment and supporting modifications. At its core, the Stealth Mach 2 features a custom 67mm, 11-blade extended tip billet 2618 aluminum alloy compressor wheel, providing a wide efficiency range and reduced surge compared to stock designs. It also boasts a custom 66.4mm, 9-blade 713C nickel alloy turbine wheel, which is larger than stock and features a more aggressive blade angle for superior exhaust energy capture and improved throttle response. The turbine blades are 50% thicker for enhanced heat tolerance, leading to lower drive pressure and EGTs under high loads, and a distinctive turbo whistle. The turbo's design includes a custom vane cage to accommodate the larger turbine wheel and a lighter rotating assembly for snappy spool-up comparable to the factory turbo. It is precision balanced in-house. The product is built with brand new parts, eliminating the need for core charges, and comes with a 1-year manufacturer warranty. This turbo is ideal for those seeking maximum power with excellent street performance, prioritizing reliable performance, and who have a modified fuel system. Importantly, this turbo must be operated with tuning that utilizes stock Minimum and Maximum Vane Position tables; failure to do so can lead to excessive exhaust pressure and boost, potentially voiding the warranty and shortening engine life. Specifically designed for the 2024, 2025, and 2026 model year Chevrolet Silverado and GMC Sierra 2500, 3500, 4500, 5500, and 6500 series trucks, as well as 2024+ International CV (Medium Duty) models. It replaces OEM Part #s 12709701044, 11547786, 12683985, and 12689094. Note: This part is not available to ship to the state of California.

MIA's Description

The Duramax Tuner Stealth Mach 2 is a VGT turbocharger designed as a direct-fit upgrade for 2024-2026 L5P Duramax engines. It features a 67mm billet compressor wheel and a custom 9-blade turbine wheel, engineered to support up to 750HP while improving exhaust energy capture and controlling high-RPM exhaust gas temperatures (EGTs).

It is constructed with brand new parts and includes a 1-year manufacturer warranty.

Fitment

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Specifications

BrandDuramax Tuner
Part NumberDUTDM1QQ1070303000
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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