11-16 Duramax LML Fleece CP4 to CP3 Install Kit Engine Flow and Performance:The intercooler tubes

Flow and Performance:The intercooler tubes provided are constructed of 3 IN mandrel bent powder-coated aluminum tubing for maximum flow

Click here for the BorgWarner Performance Turbocharger Warranty Statement

and have an increased inner diameter

Even the air filters were stock

With "Save" they mean save your transmission and rest of the driveline

11-16 Duramax LML Fleece CP4 to CP3 Install Kit Engine Flow and Performance:The intercooler tubesWhy 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