Highly doubt those things are going to work bro I’ve used a very similar product that had built in mini-cats and they didn’t do shit ... I just put my cats back in this last week to pass inspection before the end of the year since I still have a blue sticker lol.
Cheaper version here
https://www.importimageracing.com/pr...yABEgJrWfD_BwE
Basically same exact thing at 70% less ...
Post back on results