only if you get caught! The awesome thing about MBRP/DPPi exhaust is that you can get a CAT delete pipe that fits in where your CAT goes. If you take it in for service, then all you have to do is unbolt the pipe and put the CAT back on.
FWIW: my Diesel tech told me I can do whatever I want to my truck and bring it in for service and he won't void my waranty, EXCEPT for a Chip. Chips cause problems because most people aren't educated about EGT's and end up cooking their turbo. I think its a good idea to get guages even if you dont have a chip. EGT, Boost, and Tranny temp.
anyways....get a turbo back kit from Mark Craig @ Diesel performance parts.
They offer a Dual-stainless turbo back kit!
hope this helps..
JON