The Cummins harmonic damper for the '07.5-'12 Dodge Cummins truck is an OEM replacement and is designed to be used for stock applications. Not made for hi-performance applications.
This is an engine part that often has very little attention paid to it. The harmonic damper in your Dodge Turbo Diesel does deserve your attention and should be inspected regularly. Find out why in this article from TDR Issue 73 (3.1 meg).