🔥 Stainless Diesel 63/74/.91 T4 Divided 5Blade Mafia™ Turbocharger – High-Flow Upgrade for Compound Turbo Systems

The Stainless Diesel 63/74/.91 T4 Divided 5Blade Mafia™ Turbocharger is engineered for serious diesel builds that demand more flow, more power, and more attitude. Built for compound applications where increased turbine volume is essential, this turbo is ideal for race-inspired street trucks and high-performance setups pushing beyond the limits of 68mm turbine configurations.

Featuring a 63mm 5Blade billet compressor wheel and a massive 74mm turbine paired with a .91 A/R T4 twin-scroll housing, this unit delivers fast transient boost, top-end power, and a broad powerband. With proven results of 675–735 rear-wheel horsepower, this turbo offers outstanding streetability while still supporting hard street play and heavy fueling.

—

⚙️ Key Performance Features:

• 63mm billet 5Blade Mafia™ compressor wheel – fast spool, efficient airflow

• 74mm turbine with .91 A/R T4 divided housing – high exhaust flow capacity

• Designed for compound turbo setups needing more turbine flow than a 68mm

• Dyno-proven to support 675–735 HP with proper fueling and setup

• Larger race cover with high-flow radiused inlet bell

• Optimized MAP grooves in compressor cover for smoother boost transition

• Twin hydrodynamic journal bearings – built for high durability

• ¼" NPT oil feed port

• Includes turbo install gasket kit

• Optional polished compressor cover for a show-quality finish

—

⚠️ Recommended Use:

• Built specifically for use in compound turbo systems

• Not intended for stand-alone single turbo daily driver applications

• Recommended 2000–2200 RPM stall converter for street use on 5.9L Cummins

—

📦 What’s Included:

• 63/74/.91 T4 Divided 5Blade Mafia™ Turbocharger

• Turbo install gasket kit

—

💡 Why Choose This Turbo?

If you're building a compound setup and need additional turbine flow beyond what a 68mm wheel can handle, this turbo is your solution. Offering strong street manners, massive top-end flow, and the trademark 5Blade whistle, it’s engineered for serious performance without sacrificing reliability.

—

🛒 Build big. Spool fast. Make noise. Join the 5Blade Mafia™ today.

As described in our Privacy Policy, we collect personal information from your interactions with us and our website, including through cookies and similar technologies. We may also share this personal information with third parties, including advertising partners. We do this in order to show you ads on other websites that are more relevant to your interests and for other reasons outlined in our privacy policy.

Sharing of personal information for targeted advertising based on your interaction on different websites may be considered "sales", "sharing", or "targeted advertising" under certain U.S. state privacy laws. Depending on where you live, you may have the right to opt out of these activities. If you would like to exercise this opt-out right, please follow the instructions below.

If you visit our website with the Global Privacy Control opt-out preference signal enabled, depending on where you are, we will treat this as a request to opt-out of activity that may be considered a “sale” or “sharing” of personal information or other uses that may be considered targeted advertising for the device and browser you used to visit our website.