where to get a 4" i.d. Mushroom Airfilter
07-09-2008, 10:14 PM
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where to get a 4" i.d. Mushroom Airfilter Just like the title states Im needing a 4" ID Mushroom airfilter in a bad way for my 90mm TB. Its getting a speed density tune and no room for anything now that i have a plate kit on the car. THe radiator is about 3 1/2 inches away from the opening of the TB. Its not a stock radiator so i cant fit the lid or anything like that on it. Ive looked a HKS and AEM and i think the biggest they make is a 3in id filter. Ive seen some turbo cars the the green filters on them and i know the inlet of them is bigger than a 90mm TB. Thanks Justin
07-10-2008, 07:41 PM
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The HKS and foam filters in general are horrible at actually filtering air and often very restrictive. Your motor will be much happier with a cotton/oil element like a K&N.
It may take some time and a little bit of extra thought, but look through K&Ns part number charts and im sure you will find what you need.
http://www.knfilters.com/search/universal.aspx
No matter what, a filter of that height, and in turn surface area,is going to cause a pretty good drop in power.
You may want to look into finding some bends and locating the filter elsewhere.
It may take some time and a little bit of extra thought, but look through K&Ns part number charts and im sure you will find what you need.
http://www.knfilters.com/search/universal.aspx
No matter what, a filter of that height, and in turn surface area,is going to cause a pretty good drop in power.
You may want to look into finding some bends and locating the filter elsewhere.
Last edited by NoClassic; 07-10-2008 at 07:49 PM.
