Right now I'm going to be running a JDM ITR header on my CRX Si and I was wondering if anyone knows where i can get a custom test pipe/cat that will connect from the 2.5" collector to my 3" Thermal exhaust. Any help would be greatly appreciated. Thanks.

 

that **** is gonna be LOUD! around here in socal, that's copbait and that exhaust is beggin for a modified ticket not to mention a bunch of other violations that will result just from the noise attracting the cops, especially california highway patrol. CHP's are dicks around these parts... just go to a good muffler shop that has experience with race mufflers and good welding and they can hook up a test pipe for no more than 60 bucks, depending on the materials used.