Originally Posted by
CarCrazy
Yes, the whole point is that they are re-usable/washable. I think the standard flow ones are better. The hi-flow one only comes in neon green, but it is intended to favor airflow over dirt protection. The first time you check your filter after running one of these covers, you'll see what I mean.
They keep those foam pre-filter edges tight to the filter housing, improving that seal. You can also run a bit more oil on the foam pre-filter, without everything sticking to it.
Run the hi-flow one on race day, and the standard flow style on practice days. I've been doing this for years with success, have saved tons of money on foam, and my motors last longer.
This pic is a good example of how this works:
I have been using the same red one for almost a year now. Works well.
I saw where someone mention the sticky stuff. It has many names but I know it as Vet Wrap. It is used for bandaging. It works fine, just dont wrap it around more than once or your carb will sufficate.