It all depends on other mods done to your truck. I myself would pass on both of those and go with DP or TW. I have yet to see anybody who has run a generic tune and then a tune from Tony or Jody that said they liked the generic tune better. This should tell you something. Research it for yourself. Just make sure you do the supporting mods before you throw extra ponies at a stock powertrain that wasn't designed to handle it.
I have the EZ box that came on my truck. I plan on putting in back on when I take the Juice w/ Attitude off and do a custom tune (after injectors and a turbo). I will stack the EZ with a custom tune. So I'll tell you in a month or so.
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