I had tried to order some mac mids with catted Y pipe earlier this year and was told that MAC was having problems with their cat supplier. Now I notice that on their web site they no longer list the catted Y pipe as an option with their headers. I have also noticed that some of the online retailers have dropped MAC from their product lines.

What gives?

 

Just get their ORY and a couple of carsounds cats off ebay. It'll be cheaper and flow better. The cats Mac used were relatively restrictive.