I noticed that the original post was for an SRT6, but the links for the exhaust mods appear to indicate "NOT for SRT6". It looks like SRT6 exhaust is twice as much $$. I wonder if the below link would fit and SRT6? OBX system for only about 400 bucks.

https://www.ebay.com/itm/OBX-Cat-bac....c100677.m4598

Oh, wait. Never mind. After another google search looking closer at images, I realized the SRT6 has duals going onto performance exhaust, and the NA has a single pipe.