Good improvement over the stock air box that will crack on the ford 7.3. and get a billet compressor wheel as well.

Great filter. My truck runs like a raped ape with this bad boy. I've been buying this filter from Riffraff for 3 years. The lowest price I've been able to find period. I usually order 2 at a time to save on shipping. Sweet filter at a sweet Price.

I like this system a lot, it really helps the big girl catch her breath. Clay is the best and the CHEAPEST price you'll find. My Napa wants somewhere around $70 for this same filter. Thanks, I will definately be using you again in the future.

I have been running these filters for almost 2 years.
Great filtration and they last a very long time.
plus a huge increase in airflow over the stock setup with a low price.