Lucky Jeff
Well-Known Member
Whew there's a lot of good info in here.
What would the best route be to boost mine up to 400hp? Currently I have a 4" turbo back. I think stock they are 260hp... (99 CTD)
TST (or equivalent), Smaller S300 turbo (62/68 or 62/65), Supporting pump like a FASS or Airdog. As well as a small injector upgrade (DDP2's). It adds up pretty quick if everything is bought new. But parts for lower hp goals are often for sale with few miles on them for much less. It's very common for people to get the bug and want more and more, so they sell off their upgrades quick booo. You can hit your mark with less, but to make it run smooth and clean with few worries, it's best to have all the mods so your truck isn't working very hard in any one area and causing more problems.
Be cautious on who does your tranny too. That is one place you really don't want to skimp on. There are a lot of people out there who believe they can build the tranny to hold no problem. But it's way different then the high hp gassers they're used to building for.
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