I've got the first service coming up for my recently rebuilt 2nd 3sgte and I'm a bit paranoid n bla bla blah but I want the best of everything... I was looking at royal purple oil filters n they seem well made, anyone bought any of there products? Also whats the best brand n grade of motor oil to use

i use K&N filters and Nulon fully synthetic, seems to be happy

Gorilla inds can supply you with the k&n ones iirc.

i was using drift filters, but then changed to K&N
and i run 10-40 royal purple oil,

I run whatever fits. Last one was off a SR20. Used Martini racing last time(no idea of the difference but it didnt blow up so all ok) but now has 0-40. It is more noisy when cold but have not run it hot so don't know if will blow the engine up!