have a ? about 6.7L

[otisbcool]

i have 2008 6.7 dodge 2500 manual shift, completly stock. I used to run fuel conditioner in my old 12v and i've been told this is not necessary in the 6.7 with ulsd. maybe someone could clear this up for me with any recomendations. i am also soon planning some upgrades i.e. exhaust,egr, and dpf delete as the truck is almost out of warranty. maybe some hints there pertaining to best prices etc. i plan to have the truck at least until someone totals it like my '97 (still have many parts from that by the way). hope you can share some info and i can share any i have with you. please excuse the fact that i am not a computer guy so bear with my response