SO last weekend I installed a new KN FIPK into the Expy. It took quite a bit longer than I thought (Last year my father and I installed one on his Ram). My only complaint was that I had to fabricate a bracket that was not long enough for my engine. Apparently, my engine was missing a bracket that is on the F-150.

The sound is pretty cool...normal driving there is no difference. But, under heavy acceleration the sounds is a lot better,

I will post pictures of the installation later today.