The 6.4L Powerstroke (2008–2010) is a strong, powerful diesel platform—but like all high-pressure common-rail engines, it depends heavily on clean, consistent, air-free fuel to stay reliable.
Injectors and fuel system components on the 6.4 Powerstroke are especially sensitive to contamination, making fuel filtration one of the smartest upgrades you can make.
FASS Diesel Fuel Systems offers
several proven options for the 6.4 Powerstroke, including the Titanium Signature Series, No-Drop, and PLUS variants. This guide will help you quickly understand the differences and choose the right setup for your truck.
Choosing the Right Flow Rate (GPH)
Choosing the right Gallon-Per-Hour (GPH) or flow rate for your 6.4 Powerstroke's fuel system is a crucial but
easy step. The more power your truck makes, the higher GPH system (more fuel) you'll need.
Here at FASS, GPH ratings for our
6.4 Powerstroke Fuel Systems break down like this:
- Stock to 600hp: 100GPH
- 600hp to 1,000hp: 165GPH
- 900hp to 1,200hp: 250GPH
- 1,200hp to 1,500hp: 290GPH
To select the right GPH FASS Fuel System, simply choose the GPH that's rated for the horsepower your truck makes.
Please note:
If you have performance modifications planned, you can absolutely install a higher-flow (more GPH) FASS Fuel System than you currently need. It will
not hurt anything. However, you may notice increased fuel pump noise; due to the higher volume of fuel being moved.
Why a FASS Fuel System Makes Sense for the 6.4 Powerstroke
From the factory, the 6.4 Powerstroke fuel system does an acceptable job—but it still allows
air, vapor, water, and fine debris to pass through. Over time, those contaminants contribute to injector wear, inconsistent fuel pressure, and expensive failures.
A FASS Fuel System improves reliability by:
- Removing air and vapor from the fuel supply
- Filtering fuel down to 2 microns absolute
- Removing over 99% of free water
- Delivering consistent, positive fuel pressure
The result is smoother operation, quieter injectors, and significantly improved fuel system longevity.
Titanium Signature Series for the 6.4 Powerstroke
The FASS Titanium Signature Series is the foundation of the FASS lineup and an excellent upgrade for most 6.4 Powerstroke owners.
Key features include:
- Brass pipe thread fittings
- Industry-leading air/vapor separation
- 2-micron absolute filtration
- Proven durability for daily driving, towing, and work use
This option is ideal for stock or lightly modified trucks where reliability and injector protection are the top priorities.
Titanium Signature Series No-Drop
The No-Drop version of the Titanium Signature Series includes the FASS Single-Bolt Fuel Sump, allowing installation without removing or lowering the fuel tank.
Benefits of the No-Drop option:
- Faster and easier installation
- Bottom-draw fuel pickup for consistent supply
- No fuel tank removal required
For DIY installers or shops looking to save time and labor, the No-Drop system is one of the most popular choices for 6.4 Powerstroke trucks.
Titanium Signature Series PLUS
The Titanium Signature Series PLUS offers the same filtration, flow, and reliability as the standard Signature Series, but with upgraded hardware.
The PLUS version includes:
- Black O-ring boss (ORB) fittings
- Cleaner, more professional appearance
- Improved sealing and serviceability
Performance is identical to the standard Titanium Signature Series—the PLUS upgrade is all about premium fit, finish, and ease of maintenance.
Titanium Signature Series PLUS No-Drop
The PLUS No-Drop system combines the best of both worlds:
- The Single-Bolt Fuel Sump for easy, tank-free installation
- Black ORB fittings for a sleek, durable setup
This is the go-to choice for 6.4 Powerstroke owners who want the easiest installation with the cleanest, most refined hardware available.
How to Choose the Right Option
If you want a quick recommendation:
- Stock or lightly modified 6.4 Powerstroke: Titanium Signature Series
- DIY install or time-saving setup: Titanium Signature Series No-Drop
- Premium hardware and appearance: Titanium Signature Series PLUS
- Best overall package:
Titanium Signature Series PLUS No-Drop
No matter which option you choose, you’re getting the same legendary FASS filtration and fuel conditioning technology designed to protect your injectors and fuel system.
Final Thoughts
Choosing the right FASS Fuel System for your 6.4 Powerstroke comes down to installation preference and hardware upgrades—not performance differences. Every Titanium Signature Series variant delivers the same clean, air-free fuel that helps extend injector life and improve reliability.
If you’re still unsure which system best fits your truck, ourcustomer service team here at
FASS Diesel Fuel Systems is always ready to help you select the perfect setup for your needs.
