Ok, I got 5 filters from Jeff (thanks Jeff for the fast turnaround)...anyways, they're the small one's. Part number is H1540-PFB-004. Anyways, they are very small! Are they the right HAMP filters?? Just checking...

 

The small ones will keep your oil pressure more stable but lack the filtering of the larger ones.

 

So is it suitable for street driving + Weekend warriorship?

At what miles should I change the oil?

 

Yup. Just change your oil like usual.

 

I just installed it... they're hella small, hehe!