11-16 Duramax LML Fleece CP4 to CP3 Install Kit Cooling (2) Sealing Washers

(2) Sealing Washers

This can cause excessive pressure to build in the cooling system

The coolers utilizes larger than OE diameter tubes with a thicker wall to reduce clogging

This is our 5" Cold Air Intake system for 07

Better control of your truck and load

11-16 Duramax LML Fleece CP4 to CP3 Install Kit Cooling (2) Sealing WashersWhy convert your LML's Fuel System from a CP4 to a CP3 The stock CP4 is only capable of supporting up to ~500rwhp. A stock CP3 is capable of supporting 600+ rwhp in conjuction with the piezoelectric injectors. The CP4 was introduced as a cost reduction to the LML platform since a smaller amount of fuel is required when running the more efficient piezoelectric injectors. Since its introduction it has proven to be less reliable and less capable than the