Sinister Diesel Pitbull Series® Turbocharger
Fits 2004.5–2010 Chevy Silverado / GMC Sierra 2500HD & 3500HD 6.6L Duramax
Note: Not for sale in the state of California.
Turbos are made to order. Due to high demand, please allow approximately 3–4 weeks for your turbo to be built and ready to ship.
Key Features
• 65mm Billet Compressor Wheel – Increases airflow and efficiency for faster spool-up and higher boost levels.
• Mixed Flow Turbine Design – Reduces back pressure while improving turbine efficiency and flow.
• Factory VGT Compatibility – Retains OEM Variable Geometry Turbo function for responsive, low-end power and towing performance.
• Up to 85 lb/min Airflow – Supports up to 690 horsepower at the crank when combined with supporting modifications.
• Direct Drop-In Fitment – Uses factory-style mounts, lines, and sensors for a hassle-free installation.
• Lower EGTs and Drive Pressure – Keeps your engine running cooler and more efficient under heavy load.
• Precision VSR High-Speed Balanced – Ensures smooth, quiet operation and long-lasting durability.
• Ideal for Daily Driving, Towing, or Performance Builds – Balanced for all-around use and reliability.
Product Overview
The Sinister Diesel Pitbull Series® Turbocharger for the 2004.5–2010 Duramax 6.6L is the ultimate bolt-on upgrade for drivers who want more power without sacrificing drivability. Designed as a direct drop-in replacement, this turbo retains the factory VGT system for strong low-end torque while unlocking enough airflow to support up to 690 horsepower.
Built around a 65mm billet compressor wheel and a high-efficiency mixed flow turbine, the Pitbull Series® Turbo increases boost control, improves throttle response, and lowers exhaust gas temperatures. Whether your truck is used for towing, daily driving, or performance builds, this turbo provides the airflow and reliability your Duramax deserves.
Every Pitbull Series® Turbo is precision-balanced for flawless performance and finished in Sinister Blue powdercoat for corrosion resistance and a bold, custom look under the hood.
What’s Included
• (1) Pitbull Series® Turbocharger
• Installation Hardware
Q&A
Q: Does this turbo require custom tuning?
A: No, tuning is not required.
Q: Will this turbo work with my factory VGT system?
A: Yes, it’s designed to retain your factory Variable Geometry Turbo setup, maintaining strong low-end response and drivability.
Q: How much horsepower can this turbo support?
A: With proper supporting mods and tuning, the Pitbull Series® Turbo can support up to 690 horsepower at the crank.
Q: What kind of airflow improvement can I expect?
A: This turbo flows up to 85 lb/min of air—significantly higher than stock—reducing EGTs and improving efficiency.
Q: Can I daily drive or tow with this turbo?
A: Absolutely. The Pitbull Series® Turbo is designed to provide excellent towing capability, quick spool-up, and long-term reliability.
Q: Is this a brand-new turbo or remanufactured?
A: Every Pitbull Series® Turbo is 100% brand new—no reused or remanufactured components.
Q: How long before it ships?
A: Each unit is made to order, so please allow approximately 3–4 weeks for your turbo to be built and shipped.
Why Buy From Sinister Diesel
Since 2009, Sinister Diesel has been the trusted name in performance and reliability for Powerstroke, Cummins, and Duramax owners. Every Pitbull Series® Turbo is precision-engineered, VSR-balanced, and quality-checked in-house to deliver consistent results and lasting performance. Backed by U.S.-based support and our commitment to quality, Sinister Diesel is your source for proven power and reliability.
