TRP Intercooler

[Truckdriven]

So I ordered the original paccar intercooler got it in and pressure tested it and found a leak at the bottom corner at one of the welds. Pressurized it to 30 PSI and it dropped 1.75 PSI in a minute. Pretty disappointing after spending nearly 1,600 to try to avoid poor quality problems. Unfortunately it was already installed in the truck and I didn't have time pull it out and exchange it for another. Will a leak of that amount have any effect on fuel mileage??