5 BLADE S366/74/.91 T-4 DIVIDED NON-GATED TURBO
🔥 Stainless Diesel 66/74/.91 T4 Divided 5Blade Mafia™ Turbocharger – High-Performance Street & Race Turbo Upgrade
Push the limits of your street-driven diesel build with the Stainless Diesel 66/74/.91 T4 Divided 5Blade Mafia™ Turbocharger—designed for enthusiasts who demand peak power and fast boost without sacrificing drivability. This turbo delivers massive airflow, aggressive sound, and rapid spool characteristics, making it a top-tier choice for high-horsepower Cummins builds and other T4 divided applications.
Featuring a 66mm 5Blade billet compressor wheel and a 74mm turbine, this turbocharger has been dyno-tested to produce up to 750–800 rear-wheel horsepower. It’s ideal for hot street trucks, high-output daily drivers, and competition-level setups looking for bold power, strong throttle response, and that signature 5Blade whistle.
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⚙️ Key Features:
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66mm 5Blade Mafia™ billet compressor wheel for optimized spool and airflow
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74mm turbine with .91 A/R T4 twin-scroll (divided) non-wastegated turbine housing
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Capable of 750–800+ RWHP with proper fueling and setup
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Race cover with large radiused inlet bell for high-volume charge air
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Optimized compressor cover MAP grooves for enhanced boost control
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Twin hydrodynamic journal bearings for smooth operation and long-term durability
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¼" NPT oil feed port
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Includes full turbo install gasket kit
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Optional polished compressor cover available for show-quality engine bays
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Designed for high-performance street use and track-day applications
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Recommended: 2000–2200 RPM stall converter for 5.9L Cummins street trucks
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📦 What’s Included:
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66/74/.91 T4 Divided 5Blade Mafia™ Turbocharger
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Full Turbo Install Gasket Kit
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💡 Why Choose the 66/74/.91?
This turbo is the sweet spot between explosive top-end horsepower and manageable street drivability. Whether you're running a competition-ready 5.9L Cummins or a built street truck that lives for boost, the Stainless Diesel 5Blade delivers the power, response, and sound you crave—with no compromises.
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🛒 Join the 5Blade Mafia™ and dominate the street with the proven performance, unique whistle, and unmatched power of the 66/74/.91 T4 turbocharger. Order yours today.
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5 BLADE S366/74/.91 T-4 DIVIDED NON-GATED TURBO
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.