I am in the process of putting new exhaust system on my K5 6.2. I wanting to put 3" but the exhaust shop says they can't route the 3" past the transfer case???? He wants to do 2.5" from the manifold back. Any suggerstions?????? I have a 350 with a 208. I also want to go with Flowmaster mufflers 50 or 70 series? Comments: This a daily driver, I don't want it too loud. (I have to uphold my image with the local PD. Thanks for any suggestions.