PPE LML Cast Iron Cylinder Head 11-16 GM 6.6L Duramax RL-66-1211 the best way to do

the best way to do this is by installing a regulated fuel return kit

for an improved driving experience with both stock size and oversize aftermarket wheels and tires

Cross Reference Part Number: 8C3Z9J460A

BOSCH ADVANTAGE: The advantage to being rebuilt by Bosch is they have the ability to completely "gut" these pumps from input to output to ensure they are as close to new as possible

IMPORTANT NOTES: Requires 2" of front bump stop extension for adequate clearance at full suspension compression

PPE LML Cast Iron Cylinder Head 11-16 GM 6.6L Duramax RL-66-1211 the best way to doOver time, the OEM Duramax cast aluminum cylinder heads exhibit shortcomings. Due to the disparate heat expansion rates between the cast iron engine block and the cast aluminum cylinder head, issues such as head gasket scrubbing and eventual blown head gaskets arise. Additionally, the aluminum cylinder heads are susceptible to warping, melting, or cracking, particularly in high performance scenarios where elevated heat levels are introduced. PPEs new