With these selling so quickly, we have loaded up our inventory. We currently have 33 cans in stock and another 20 that will be here early next week. I have had multiple calls in the past few weeks from customers with tuners that aren't feeling the full gains they should be. The reason for this is because the summer heat, combined with the oil from the PCV being mixed with your fuel, is causing the engine to knock. This engine knock will cause the computer to pull timing which translates into a loss of power. I cant stress enough how important it is to have a catch can installed on every hemi motor, both stock and modded. The catch can will keep that oil out of your intake manifold and out of your fuel to give you a much stronger and more efficient motor.