Re: SBP Air Filters
There is not much difference between the two to be honest. The HD one is custom made for us and the filter material is different and cleanable. It also comes pre-oiled. The standard one in not pre-oiled, not that oiling is required and it is slightly longer by about 1/4 inch. There is a difference in cost to us so there is a difference in cost to the consumer. I have used both and there is no performance difference, it is just that the HD one is a nicer slightly higher quality filter.