I have a few questions on what air filter i should run in my 99 f350. I heard the 6637 Filter Kit is a good one also the AIS Severe Duty Intake Kit FA1759. Any suggestions would be greatly appreciated.
I used the AIS. I don't like under hood air (because its hot) which is what you get with the 6637. And while I'm aware it is very popular, it just looks like something a punk would do to his Honda. I bought my AIS from Rockauto, about $177 shipped. I don't know if my fuel burn changed, but the EGT's dropped a bit from the POS open filter the PO had on it. It was obviously plugged with snow-country scuzz. I have over 50K on the element, and it still reads 1/3 at most on the gauge.
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more!