[Chris 2018 ZL1 A10]

Originally Posted by Mark R

This study may be a few years old, but it's still valid. I'll never use a K&N filter again.

http://www.billswebspace.com/AirFilterTest.htm

Mark, thank you, that was a LOT of good information collected under some very strict testing conditions. Absorbing it though, was like trying to take a drink from a fire hose. Too bad there isn’t anything out there (yet) that compares engines with and without Catch Cans under similar testing conditions.

When it comes to protecting the engine from dirt, AC Delco was tops. While the data was collected in 2004, it would indeed be interesting to see how the AC Delco stacks up against the popular CAI’s that many are using today.

Chris