Outer Limits 4x4 Board

Accidently broke the intake on my prefilter last night during an alternator swap, effectively disabling the filter, so the main filter is now the only one in the circuit.

Noticed a heap more power, EGT's are a lot lower than previously, EGT doesn't take as long to cool down after pulling under load / boost, faster to spool etc. Previously I was seeing some black smoke, which has disappeared now the filter has disappeared.

Filter was cleaned a couple of weeks ago (compressed air).

There has to be a way to increase the flow on these things - K&N don't make a direct replacement, but I found the E9267 (from a 2002 GU) might just fit with some sort of spacer ....

I know this topic has been covered before, but a quick search revealed nothing definitive.

Assuming that I *will* still be running a prefilter, is there any way of increasing the flow? Aftermarket replacement?

finer filter/uni filter do a replacement for both. thats what i got. does the job well.

Just run some pipe from the guard where the snorkel comes in, to the airbox, and run paper filters - they work the best.

I've got foam filters for main and pre (before throwing precleaner box away)- both K&N, didnt do squat to mine so went back to paper.

Thnx bogged ... interesting to note that k&n's propoganda regarding higher flow rates may not be as practicable in the real world. That prefilter seems way too small for the job ....

been told precleaners are no good for a turbo'd gq 4.2d don't run one and i havn't for two years no problems

Mine is a DX TD42 LWB and they never came out with a pre cleaner.
There is a dummy housing there, but it cannot be opened.
I have done 250k with no dramas, however I replace my snorkel ram with a donaldson cyclone type pre cleaner when I do big trips, or follow anyone in summer...