5Blade Mafia™ Underboss 63/64 VGT Drop-In Turbo | 2013-2018 6.7L Cummins Performance Upgrade
Stainless Diesel ‘VGT UNDERBOSS’ 5Blade Mafia™ Turbocharger – Drop-In Turbo Upgrade for 2013–2018 6.7L Cummins Diesel
Looking for a high-performance turbo upgrade for your 2013–2018 6.7L Cummins diesel truck? The Stainless Diesel VGT UNDERBOSS 5Blade Mafia™ Turbocharger is a premium drop-in replacement turbo designed to deliver massive power gains, better reliability, and enhanced drivability—all while maintaining OEM fitment and functionality.
This 6.7 Cummins turbo upgrade is perfect for truck owners dealing with a failing stock turbo, aiming to meet work stock diesel pulling class rules, or building a sleeper truck that performs like a beast under the hood. No custom modifications required—just bolt it on and go.
With a 63mm 5Blade billet compressor wheel and a proven high-flow 64mm 10Blade turbine, this upgraded turbocharger supports up to ~650 HP (with upgraded fueling) while producing faster spool, and reduced EGTs.
🔧 Key Features & Benefits:
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Direct drop-in turbo replacement for 2013–2018 RAM 2500/3500 6.7L Cummins
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Maintains stock-like drivability with OEM exhaust brake compatibility
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Engineered for up to ~650 horsepower with proper fueling upgrades
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Features a 5Blade Mafia™ billet compressor wheel for superior airflow
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Includes pre-calibrated VGT actuator – no tuning required
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Includes full installation gasket kit for easy install
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Optional -4 AN braided stainless steel oil feed line available
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Helps lower exhaust gas temperatures (EGTs) for cooler, more efficient towing
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Ideal for performance diesel builds, daily drivers, towing, and competition trucks
- Optional 64mm 9Blade high-flow turbine wheel for more exhaust flow, more power capability and an aggressive whistle
📦 What’s Included:
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VGT UNDERBOSS 5Blade Mafia™ Turbo
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Pre-calibrated VGT actuator
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Complete set of install gaskets
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1-Year Unlimited Mileage Warranty
🔧 Note: Must reuse your stock oil feed fitting.
Upgrade your RAM 2500 or 3500 6.7L Cummins with a turbo that’s built to perform. Whether you’re towing, racing, or daily driving, the Stainless Diesel VGT UNDERBOSS delivers unmatched performance, reliability, and sound.
Buy now and experience the difference in your Cummins turbo setup!
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5Blade Mafia™ Underboss 63/64 VGT Drop-In Turbo | 2013-2018 6.7L Cummins Performance Upgrade
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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.