Have an order in for an '05 Black 2500HD CC/SB Duramax/Alison power pkg 4X4 GMC with SLT trim, XM radio, Tow package, and Hillbilly lights! Looking forward to getting started on it, should be here in 4 weeks. I own a repair and performance shop so can get good pricing on performance diesel parts, this is gonna be the showcase vehicle for my shop along with my Z28. Looking forward to sharing information with you all, I just happened to stumble on this sight looking for an exhaust for an '05 and am happy I did, got alot of good information from some of the discusions already!:ro)

Congratulations, you made a good choice and were glad to see you on this forum. Let people know about us.

Diesel performance parts has good deals on 4'' MBRP exhaust.

Welcome, Congrats, and where is this shop located?

Baltimore,MD, I hate it here but the wifes fam is here and she won't leave!:mad: I use to work at a GMC dealer here as a service advisor but quit to open this shop 3 years ago when a new owner came it. If it were up to me I would be in S.C. or Georgia somewhere.