I have a MXZ with a Crank Shop 1025 that now has a 151 tunnel extension, I was riding it yesterday in some harder snow and it was warm out and it was overheating. The coolers run just the original length. There was a lot of snow buildup on the extension part but not on the coolers. I've never had this problem in better snow. Is there a cooler extension or anything else to do to it. Thanks. Its a ZX chassis.