Industrial Injection 438403 CP3 Stage 1 Bag of Parts Kit 6.6L Duramax LBZ LMM

The Industrial Injection 438403 CP3 Stage I Bag of Parts is a do-it-yourself fuel system upgrade kit for the 2006–2010 GM 6.6L Duramax LBZ and LMM engines. Designed for owners who want to increase CP3 injection pump output without the expense or hassle of a full pump replacement, this bolt-on kit delivers up to 19% more fuel supply volume to better meet the demands of upgraded injectors, tuning, and performance modifications.

All components are brand new and precision-modified using the EDM (Electrical Discharge Machining) process for accuracy and reliability. The kit installs directly onto the existing CP3 pump with no pump removal required — no core charge applies.

Kit Includes:

• Ported gear housing
• Rail pressure fitting
• Pressure regulator (MPROP) — designed to accommodate larger injectors

Key Features:

• Up to 19% increase in fuel supply volume
• Bolt-on installation — no CP3 pump removal required
• New components modified via EDM process
• Compatible with mild injector upgrades (up to 20% over stock)
• SEMA Certified — Emissions Certificate Number: SC-IDI01-0110
• No core charge

Note: Industrial Injection recommends this upgrade be used with injectors no larger than 20% over stock. Not legal for sale or use in California. This product is intended for competition use only. Compliance with all applicable state and federal emissions standards is the consumer's responsibility.