Uncle Ugg
ugg013@aol.com
I also went with the DynoMax cut in muffler. Why get a cat-back, and replace perfectly good stainless pipe? I also went with the DynoMax Headers. I have 99 SLT+, WITH A 5.9. I GOT BOTH ITEMS FROM SUMMITT. If I had it to do over, I'd go the same way. By the way, I pondered & studied for almost a year before I got the stuff.
Hope to have helped.
Ugg