I know of someone running the S-300 on their 03. He has had great results, no egt problems at all. His truck is a 6spd, 100hp injectors, TST stacked with the ramifier, mitchell pulling clutch. When he pulls he might see the egts get to about 1500 with the box on 6x6. I just got one for my truck and will have some first hand opinions soon. We got them from EEP. The S-300/S-400 would be a killer twin setup. After seeing how this turbo performs I will never by another Holset.
digger