20-24 GM LM2/LZ0 Intercooler Coolant Heat Exchanger Pacific Performance Engineering Air Inlet Elbow|Cold Air Intake|Performance For even less fuel flow

For even less fuel flow restriction

AC Delco Equivalent P/N: PF66

90 degree cast aluminum discharge adapter (3 inch OD)

Aluminum Tubes with Raw Finish

Note 1: Requires the use of LBZ/LMM glow plugs on LLY engines

20-24 GM LM2/LZ0 Intercooler Coolant Heat Exchanger Pacific Performance Engineering Air Inlet Elbow|Cold Air Intake|Performance For even less fuel flowThe GM 3. 0L Duramax utilizes an air to liquid intercooler to keep its intake air cool. However, the stock intercooler's performance is largely dependent on the efficiency of the front mounted coolant heat exchanger. This heat exchanger absorbs heat from the intercooler coolant and dissipates it to the ambient air. If the heat exchanger becomes heat saturated, it will greatly impact the efficiency of the intercooler, and affect engine performance.