PPE(Pacific Performance Engineering)
Intercooler

GM 6.6L Duramax LB7/LLY 2001-05

PPE designed this performance intercooler to be as large as possible while staying inside the GM packaging constraints. This Intercooler will fit the LB7/LLY engine bay on a GMC or Chevrolet like a glove. This PPE intercooler also flows about 15% better then the stock intercooler which leads to lower intake temperatures by up to 120 degrees, and will actually result in higher boost pressures. They also will give up to a 200 degree drop in exhaust gas temperatures, and are especially useful if you are in high load situations such as sled pulling, drag racing, or towing.