I purchased a o6 F-250 crew cab lariat back in july, I did a lot of research on 6.o issues and was hoping for it to make it till spring before doing the "bulletproofing" needless to say it just started puking out of the de-gas. So I dropped it off to the shop Saturday for head studs, egr delete, new oil cooler and screen, and all the other updates. I opted to go with oem head gaskets, I have an sct innovative diesel tuner in which I prefer the xtreme street tune and a 4" Mbrp exhaust. My question is How long should i expect out of the head gaskets with this set-up. I don't do a lot of heavy towing just an 18' boat and an atv trailer with 3 or 4 wheelers on it.