S&S Diesel Motorsport 50 State LML CP3 Conversion Kit - NO TUNE

S&S Diesel Motorsport LML CP3 Conversion Kits

2011–2016 Duramax LML 2500/3500HD

S&S Diesel Motorsport LML CP3 conversion kits replace the factory CP4 pump with a reliable CP3 system while maintaining proper fuel delivery and long-term durability. All kits include an S&S CP3 pump and are backed by a 2-year manufacturer warranty.

⚠️ Two options are available. Please read carefully before selecting.

OPTION 1: Competition Use Only

LML CP3 Conversion Kit – Off-Road Use Only

No Tuning Required

This option is designed for customers who want to install a CP3 conversion on their 2011–2016 Duramax LML but do not have access to custom tuning for a traditional CP3 conversion.

• 100% drop-in installation

• No tuning updates required

• Intended for off-road / competition use only

• Not CARB exempt

This kit is ideal for competition trucks where emissions compliance is not required and simplicity is a priority.

⚠️ Competition Use Only – Not legal for on-road use in emissions-regulated states

OPTION 2: 50-State CARB-Exempt (Stock Trucks Only)

LML CP3 Conversion Kit – CARB Exempt

No Tuning Required – Emissions Intact

This option is specifically designed for 100% stock, emissions-compliant 2011–2016 Duramax LML trucks.

• Direct replacement for the factory CP4 pump

• Keeps all factory emissions equipment intact

• No tuning required

• Legal for on-road use in all 50 states

This is the correct choice for customers who want CP3 reliability while maintaining full emissions compliance.

Full Kit Details (Applies to Both Options)

• Built using brand-new Bosch LBZ-based CP3 pumps

• Modified to support fueling demands from 500 to 1,400 horsepower

• Internally optimized for efficient fuel delivery beyond typical diesel RPM ranges

• Each pump includes a performance data sheet

• 2-year S&S Diesel Motorsport warranty

LML CP3 Conversion Kit Features

• 50-State LML CP3 conversion kit with pump

• CARB Exempt (Stock Option Only)

• EO #: D-756-5

• No tuning required

• DPF-equipped / emissions equipment required

📞 For warranty information on S&S Diesel Motorsport pumps, call 1-866-941-8990.