S&S Diesel CP4 to CP3 Conversion Kit (No Tuning Required)

For 2011-2016 GM 6.6L Duramax LML

S&S Diesel LML-CP3-NO-TUNING-REQ Conversion Kit replaces the problematic CP4 pump with a durable CP3 pump, improving fuel system reliability without requiring tuning adjustments. This kit maintains factory emissions compliance, reduces the risk of fuel system failures, and includes all necessary components for a straightforward installation.

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