POS Stihl air filter design

[Stihlman441]

I dont see any nead for the pre filter.

 

[Deets066]

I'm sure you can't tell the difference performance wise between the HD2 and HD1, but are they claiming to flow better or just filter better, or do they have less flow? Just curious.

 

[Stihlman441]

Filter better,the old ones were crap when it came to very fine Ozzy Red gum dust.

 

[splitpost]

Filter better,the old ones were crap when it came to very fine Ozzy Red gum dust.

And less restrictive