Originally Posted By: Gary Allan
Depends on if you want an ADBV or not.
The 61 appears to be a finer filter in comparison. It doesn't have an ADBV.
You can always opt for the mega 51794. BIG, BABY!!!
Wonder why WIX provides the full size GM trucks with a non-ADBV 2nd filter option, but for my mid-size GM Colorado they don't? All they offer me is the ADBV version 51522WIX/1522(NAPA).