Description
Upgrade your fuel system with the PPE Ported Fuel Rail Fitting, designed for 2004.5–2010 GM 6.6L Duramax diesel engines equipped with the LLY, LBZ, or LMM platform.
The factory fuel rail fitting can become restrictive under heavy load and higher horsepower applications. PPE’s precision-machined stainless steel fitting replaces the restrictive OEM unit and increases available fuel flow from the CP3 injection pump to the fuel rail.
Maintaining proper rail pressure is critical for clean power, throttle response, and consistent performance.
Why Upgrade?
Under heavy load, stock fittings can contribute to:
– Fuel pressure drops
– Inconsistent rail pressure
– Reduced performance
The PPE ported fitting helps:
– Improve fuel flow volume
– Reduce rail pressure drop
– Maintain consistent fuel delivery
– Support higher horsepower applications
Key Features:
– Precision-machined stainless steel construction
– Reduces restriction in factory fuel rail fitting
– Improves fuel flow from CP3 pump to rail
– Helps maintain rail pressure under load
– Can be installed on one or both rails
Note: One or two fittings may be used simultaneously in the left and right fuel rails for maximum benefit.
Important Design Note: The driver-side fuel rail feeds the passenger-side rail. Improving flow at either rail benefits the entire fuel system.
Fitment: 2004.5–2010 Silverado/Sierra 2500HD & 3500HD LLY/LBZ/LMM
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