Where to drill holes on airbox?

[bstjnky]

I just bought a k@n filter and I was wondering where to drill holes in the factory airbox for better air flow? On the top or the bottom? Does it matter if the filter gets wet when it rains?
Thanks, Jason

 

[S.Matsushige]

Jason-what year is your Explorer? If its '91-'94 then you'll want to cut holes on all sides and a couple on the bottom. Remember to only do it to the bottom half of the airbox-before the air filter. You don't want any unfiltered air to get past your K&N. As for water, cutting holes in the bottom will allow any moisture that does find its way in there to drain out. I'll be one of the cheapest mods you can do which will give you good results.

 

[Rob Slade]

So, where do you cut the holes if you have a '95 or older explorer?



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Rob Slade
'95 XLT 4x4
30x9.5 All Terrain KO's
K&N Air Filter System
Manik: Grill Guard
Taillight Guards
Step-Up Bars
Surco Safari Rack
2 Hella Black Magic's
4 Hella 500's
2 Punch DVC 10's
More to come...

 

[TymeKeeper]

Drill the holes on all 4 sides under the air cleaner..Just take it out, and go to town!! Make some of the ones that are already on the bottom bigger, for better drainage if water does get in there.. I haven't had any problem with water getting in, so I wouldn't worry about it.

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Jim
'92 Eddie Bauer Explorer
Dual 2.25 exhaust, no Mufflers
Drilled AirBox
Bosch Platinum plugs
Low Temp Pro Thermostat
Cobra 148GTL W/K40 Mag
235/60's

 

[Turner55]

does anyone have pictures of their 91-94 modified airbox? i'm kind of scared to drill holes in the airbox w/o being completely sure where to drill...thanks

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'93 explorer sport 4x4

 

[dgammon]

OK, I give up. I've followed all this drilling the airbox discussion with great interest, but my 95 Limited doesn't appear to have a box with 4 sides. It is roughly tubular,coming straight out of the fender, and is full of air filter. It looks to me like any holes drilled would compromise the filtering. Am I looking in the wrong place entirely?

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95 Limited 4.0L