When you’re pushing the limits of your diesel, whether it’s on the drag strip, at the sled pull, or building a performance street truck, airflow is crucial. Standard turbo setups just can't move enough air or withstand the brutal drive pressure that modern high horsepower builds demand.

That’s why we’re excited to announce the arrival of our newest turbo: the Stainless Diesel SD55 88mm 5-Blade Turbocharger.

Engineered on our GT55 platform and equipped with our signature 5-blade technology, this turbo is designed to deliver aggressive spool up, massive top end flow, and competition grade durability.

What Makes the SD55 88mm 5-Blade Unique?

At the core of this turbo is our 88mm 5-Blade Billet Compressor Wheel. If you’re familiar with the 5 Blade Mafia™ lineup, you know our blade geometry isn't just about making that legendary turbo whistle, it's engineered for efficiency and strength.

• High-Flow Efficiency: The 5-blade design maximizes air mass displacement across the RPM range, feeding your engine cooler & denser air.

• Rapid Transient Response: Billet construction reduces rotating mass, giving you faster boost recovery between shifts and cleaner off-the-line loading.

• Built to Handle High Boost: Structural rigidity ensures the compressor blades hold their profile even under extreme pressures.

Key Specs at a Glance

• Compressor Wheel: 88mm High-Efficiency Billet 5-Blade Design

• Turbine Wheel: High-Flow 111×102mm Turbine for low drive-pressure operation

• Housing Options: Available with an optional 1.37 A/R Divided (Twin Scroll) T6 Turbine Housing to optimize exhaust pulse energy and speed up spooling

• Lubrication: Precision journal bearing center section requiring a -6 AN oil feed line for maximum oil volume and thermal protection under load

• Sensor Ready: Features a pre-machined speed sensor port (plug included) for real-time monitoring on stand-alone ECUs and data loggers

Who is the SD55 88mm Built For?

This isn't your average daily-driver bolt-on, the SD55 88mm is built for competition and extreme performance applications:

1. Drag Racing & Sled Pulling: Perfect as a large single turbo on high-RPM 5.9L / 6.7L Cummins, Duramax, or Powerstroke setups looking to break deep into four figure horsepower ranges.

2. Compound Setups: Makes an incredible atmospheric (atmosphere/low-pressure) charger in multi-stage turbo configurations, feeding massive air into a smaller manifold charger for instant bottom-end response and unmatched top-end charge.

3. Street & Performance Builds: Built to withstand heavy fueling, high EGTs, and intense boost pressures without any issue.

Ready to Level Up Your Build?

If your current setup is starving for air or choking on backpressure, the SD55 88mm 5-Blade Turbocharger is the upgrade you have been waiting for.

Order Your SD55 88mm 5-Blade Turbocharger Here!