


Advancements made in common rail diesel injector technology have pushed factory fuel rails well past the intended capacity they were designed for. As the injected quantity increases, so does the drop in rail pressure during the injection event. Increasing the fuel rail volume will offset this by having more pressurized fuel on demand. That is the main benefit of the S&S Diesel Motorsport® Double-Barrel Fuel Rail, along with many others:
- 2.5x (154% more) volume than a stock 6.7L Cummins fuel rail
- Maintains pressure better throughout the injection event
- More injected quantity for the same injection duration
- Improved rail pressure control due to more consistent sensor feedback
- Modular design for maximum flexibility of feed port, sensor, and PRV placement
- Sold as a bare rail (see data sheet for optional fittings and accessories)
- For max-effort 6.7L Cummins applications (NOT A DIRECT BOLT ON)
- Made in the USA
- The Double-Barrel Fuel Rail comes as a bare rail without any plugs, fittings, sensors, or pressure relief valves. This allows the fuel rail to be custom configured for each application.
- It’s recommended to use NVH isolators (HPL-ISOLATOR-CU) on injector lines for all competition applications, even with a factory fuel rail.
NOTE: This Product CANNOT Be Returned / Exchanged / Refunded For Any Reason. Exchanges Will Only Be Approved At The Discretion Of S&S For Warranty Purposes Exchanges Approved By S&S Will Be For The Exact Same Product.
Advancements made in common rail diesel injector technology have pushed factory fuel rails well past the intended capacity they were designed for. As the injected quantity increases, so does the drop in rail pressure during the injection event. Increasing the fuel rail volume will offset this by having more pressurized fuel on demand. That is the main benefit of the S&S Diesel Motorsport® Double-Barrel Fuel Rail, along with many others:
- 2.5x (154% more) volume than a stock 6.7L Cummins fuel rail
- Maintains pressure better throughout the injection event
- More injected quantity for the same injection duration
- Improved rail pressure control due to more consistent sensor feedback
- Modular design for maximum flexibility of feed port, sensor, and PRV placement
- Sold as a bare rail (see data sheet for optional fittings and accessories)
- For max-effort 6.7L Cummins applications (NOT A DIRECT BOLT ON)
- Made in the USA
- The Double-Barrel Fuel Rail comes as a bare rail without any plugs, fittings, sensors, or pressure relief valves. This allows the fuel rail to be custom configured for each application.
- It’s recommended to use NVH isolators (HPL-ISOLATOR-CU) on injector lines for all competition applications, even with a factory fuel rail.
NOTE: This Product CANNOT Be Returned / Exchanged / Refunded For Any Reason. Exchanges Will Only Be Approved At The Discretion Of S&S For Warranty Purposes Exchanges Approved By S&S Will Be For The Exact Same Product.