I got the Clear Image 4 into 1 (1 3/4" primaries) 304 stainless steel coated with chromex ceramic coating. The downpipe is 304 stailess steel with a high flow cat. the rest is 3" stainless steel with a Magnaflow muffler. I haven't got a tune/dyno yet, but that's coming in the spring. Here is a link to my exhaust thread with sound clips. Hope this helps.

https://www.cobaltss.net/forums/north-pacific-105/my-clear-image-exhaust-done-144359/