Checked the size of my filters on my VS (the EMPI kit) and they are 5.75" in diam. and 3.5" in height. Looked at all K&N's in the website and couldn't find an exact replacement in terms of dimensions. Has any of you bought any K&N's that would fit this application perfectly? If not which dimensions would be a good compromise? I know for a fact that diameters over 5.75" can't be used here; what about height? What's the model no.? Thanks!