Outer Limits 4x4 Board

hey guys just after some info on the best brands of filter for performance in a gu 4.2 turbo housing
i just fitted the housing to my gq and fitted a repco filter and now the truck is a slug and exhaust temp is up so i figure i need a better flowing filter but i want one that will do a decent job at stopping dust thanks in advance
and yes i did search but couldnt find any conclusive answers