I gotta say this short ram kit has really woken up this 6.4. I feel a difference in acceleration / Torque. Before the intake install I would race an identical car and we would finish almost even every time, after the short ram install I finished with at least 1.5 to 2 car lead. The heat soak is pretty bad at idle but recovers really quick once moving and was maintaining IAT of just 6* above ambient temps( highway speeds ) which was the same compared to the Mopar cold air intake or any air intakes that are shielded. Buy this intake you wont regret it !!