Just wondering if anyone can give me information as a new Cummins owner. I have an 03 with the 600, and want to have a boost guage installed. I am wondering where the best place is to mount it (cosmetically), and if is difficult to install. Basically, do I need to have the dealer install it. Lastly, where to I go to find this gauge. Any info you can provide would be helpful. Thanks a lot!