I am looking for a nice aftermarket cat to bolt onto my car. I want to get the JDM style DC header or the OEM JDM header and I heard that the S2000 is a direct replacement since the collector on the JDM is 2.5 and won't bolt to the stock ITR cat. I figure I may as well get a better performing cat while I'm getting the header and someone said the S2000 worked good.....

If it does not then who makes a nice aftermarket cat that will make the JDM header a direct bolt in affair....I don't want to screw around with welding and having to fabricate as I want to do this in my garage at home...