What type of cats to go with 18" FI CBE n supercharger
 

HI guys,i got an fi cbe with 18" resonators and iam looking to upgrade cats,iam planning to supercharge soon so iam curious what cats would work best with this setup,hfc-hfc resonated-test pipes etc,i live in ontario canada and we have great weather to help the z run cool in the summer and make good hp numbers.

Many members run a variety of TP's, HFC's, or Motordyne ART pipes alongside their FI TDX system. Of course, test pipes will give you more gains, but there is the downside of more noticeable smell and smog checks. It's really preferential, imo. They each do sound a little different, I would check out some videos on what you prefer.

Honestly, I doubt you could ever tell the difference between the power gains with TP's, especially when you've got forced induction.