



2.5" HOSE OUTLET 5 BLADE S366/74/.91 T-4
🔥 Stainless Diesel 66/74/.91 T4 Divided 5Blade Mafia™ Turbocharger – 2.50" Hose Outlet | High-Performance Street Turbo Upgrade
The Stainless Diesel 66/74/.91 T4 Divided 5Blade Mafia™ Turbocharger with 2.50" hose outlet is the ultimate blend of streetable performance and high-end power for diesel enthusiasts. Designed to deliver fast transient boost, sharp throttle response, and peak power output, this turbo is ideal for hot street builds, weekend warriors, and high-output daily drivers.
Equipped with a 66mm billet 5Blade Mafia™ compressor wheel and a 74mm turbine wheel, this turbocharger uses a .91 A/R T4 twin-scroll (divided) turbine housing for excellent exhaust flow and balanced drive pressure. It works with most aftermarket pedestal mounting kits and connects directly to the factory-style downpipe—making it an easy, powerful upgrade for performance-minded diesel owners.
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⚙️ Key Features:
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66mm 5Blade billet compressor wheel – fast spool and improved airflow
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74mm turbine with .91 A/R T4 divided twin-scroll turbine housing
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2.50" hose outlet – compatible with popular aftermarket intercooler piping setups
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Works with most aftermarket pedestal mount kits
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Exhaust flange mates to factory downpipe for easier installation
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Large race cover with high-flow radiused inlet bell for maximum charge air
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Optimized MAP grooves in compressor cover for improved efficiency
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Twin hydrodynamic journal bearings for long-term reliability
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¼" NPT oil feed port
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Includes full turbo install gasket set
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💡 Why Choose This Turbo?
Perfect for street trucks that demand strong spool-up and serious power, the 66/74/.91 delivers up to 750+ HP with the right supporting mods. It’s a go-to option for diesel owners who want responsive drivability, tow-capable power, and that unmistakable 5Blade whistle. Best of all, it's designed to bolt in with minimal hassle.
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📦 What’s Included:
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Stainless Diesel 66/74/.91 T4 Divided 5Blade Mafia™ Turbo (2.50" Hose Outlet)
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Complete Turbo Install Gasket Kit
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🛒 Take your diesel build to the next level—join the 5Blade Mafia™ today and enjoy the sound, power, and performance you’ve been waiting for.
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2.5" HOSE OUTLET 5 BLADE S366/74/.91 T-4
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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.