I have a k&n fipk that I installed on my Mustang years ago before I knew better. Been about a decade since it was cleaned/serviced. Based on mpg and sotp I doubt it's restrictive...but it sure looks fuzzy.
1. Leave it alone
2. Buy the kn service kit
3. Find a diy filter oil
4. Find a direct fit dry replacement element (suggestions?)
1. Leave it alone
2. Buy the kn service kit
3. Find a diy filter oil
4. Find a direct fit dry replacement element (suggestions?)
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