I’ve got a 2014 6.7. While coasting at highway speeds, the truck has a very noticeable popping noise coming from the intake, almost sounds like a backfire. It’s noticeable enough to also feel the truck slightly surge back and forth when coasting downhill everytime it pops. I’ve searched endlessly but can’t seem to find anyone with a similar issue. The turbo builds boost just fine. Truck is t-u-n-e-d and de-leeted, but it had this issue both before and after. Since putting an S&B on the truck, it’s just simply much louder now than before with the stock intake. Any Ideas? Am i long overdue for a shelled turbo?