Engineered specifically for street performance and towing applications on 2001 through 2010 Chevrolet Silverado and GMC Sierra 2500HD/3500 trucks powered by the 6.6L Duramax V8 turbo diesel engine (LB7, LLY, LBZ, and LMM platforms), the S&S Diesel Motorsport SuperSport CP3 Injection Pump (Part # CP3-DMX-SS) resolves the high-RPM fuel volume drop-off experienced by factory pumps. While stock OEM pumps begin to lose efficiency around 3,000 RPM, the SuperSport pump is engineered to maintain strong, stable high-pressure delivery well past 3,500 RPM.

Built from 100% brand-new Bosch LBZ-based pump assemblies, each SuperSport unit includes factory-matched internal modifications and comes complete with an individual calibration data sheet. Operating as a brand-new outright pump requiring no core deposit, this unit is ideal for stock-to-mildly modified trucks seeking enhanced reliability and upper RPM fueling.

Key Features & Benefits

• High-RPM Efficiency Above 3,500 RPM: Sustains high-pressure fuel delivery past standard factory drop-off thresholds.
• 100% Brand-New Bosch Core: Built upon authentic Bosch LBZ-derived pump housings for maximum structural integrity and longevity.
• Supports up to 500+ Horsepower: Perfect performance upgrade for stock or mildly tuned trucks requiring dependable fuel volume.
• Includes Calibration Data Sheet: Every pump ships with dedicated factory flow test data to ensure precise tuning compatibility.
• Zero Core Charge: Brand-new outright performance replacement component requiring no core deposit or core return shipping.

Technical Specifications

• Manufacturer / Brand: S&S Diesel Motorsport
• Manufacturer Part Number / SKU: CP3-DMX-SS
• Product Type: High-Pressure Common Rail SuperSport CP3 Injection Pump
• Performance Focus: High-RPM Fuel Delivery (>3,500 RPM Optimization)
• Supported Power Output: Up to 500+ RWHP (Single Pump Configuration)
• Core Requirement: None
• Warranty: S&S Diesel Motorsport 2-Year Limited Warranty

Vehicle Fitment & Technical Installation Notes

• 2001–2004 GM 2500HD / 3500 Duramax 6.6L (LB7 – requires custom tuning)
• 2004.5–2005 GM 2500HD / 3500 Duramax 6.6L (LLY – requires custom tuning)
• 2006–2007 GM 2500HD / 3500 Duramax 6.6L (LBZ Classic)
• 2007.5–2010 GM 2500HD / 3500 Duramax 6.6L (LMM)
• Installation Tip: Pair the SuperSport pump with an aftermarket lift pump system (150 GPH or higher) to ensure consistent feed pressure and prevent pump cavitation during heavy acceleration.