So, I bought an old YJ airbox and tube to install on my Jeep for emissions and maybe for around town too. If it helps the low end torque and indirectly help the brake booster performance -- which it probably will --, then I'll probably keep it in there. Love to do the Turbo City MAP Aduster matched to a cold air intake -- but, frankly would like to pass emissions without any "funny" business
In terms of what air filter I'd put in an air box, I've used paper and K&N panels for the last 10 years in various vehicles including this Jeep. I could deal with sticking with paper, but wanted something that flowed a little better, but didn't let the small particulates in
Was looking at foam type filters. These are still "oiled", but they apparently filter significantly better than cotton-gauze and oil filters do.
Saw this filter at the
www.autoanything.com site:
http://www.autoanything.com/air-filters/60A1963A-1A3.aspx#customerReview.
Problem is the foam/oil filter only fits on TJs Wranglers, '98 and up. So, here's the big question:
Does the late 90s TJ airbox, 2.5 (pre 2.4)/4.0 have the same area dimension as the YJ airbox? Also, any of you guys know of foam/oil filters that do fit YJ airbox or whether Foam is even worth the trouble (Dang, forgot to search the forum before asking this (doh!). Note: Most of the customer reviews suggest oil/foam is equivalent to K&N for "air flow" and vastly superior in filtration ability.