I have been running through some coolant lately on 03 Banshee. I decided to do a compression test and discovered each cylinder is at about 95-100 psi. I know this is way lower than it should be at an elevation of around 800 ft. Thinking I overheated. I pulled the head off and changed the head gasket. The old gasket didnt show any signs of leaking and the cylinders didnt look scored, the top of the pistons looked good. Anyways a compression test with a new gasket showed the same results. Come to find out when the K&N filter was installed, it wasnt rejetted. What would the possible problem be?