anyone ever try amsoil Pre filter

18psiWhiteMS3

Banned
:
2009 MazdaSpeed3
Just looking at the prefilter on there websight. Its the little blue bag type thing that goes over the airfilter so u can just take it off shake it and put it back on so ur filter never really needs to be cleaned. I know they say offroad and racing use but has anyone tryed it on a street application. I feel like it might be a good investment.
 
i have used it one for quite a while and like it very much. its a good investment and does help keep the filter cleaner for longer. not for ever though
 
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