Regular K&N replacement filter
I picked up a regular K&N replacement filter because I noticed a performance gain in previous cars. It feels a little better but it might just be my imagination. Talking to a co-worker he said he heard there was a restrictor installed by Ford that some people have been taking out. Is this true? Am I gaining anything by putting the filter in a stock 05 GT?
I don't want to go with the CAI yet because I have other future plans for it first.
2014 GT500 Shelby Cobra Triple Black
2017 Focus RS Stealth Gray