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I own a JB4 and haven't tried anything else. This is how I view it after researching - take this from my previously stated point of view:
1. COBB - If you want high HP (over 450whp without meth) you will need this to hit it so that you can get the better AFR control from flash tune.
2. Procede - Get this if you are going to run the big single kit. Otherwise JB4 is cheaper and has better and more frequent support. More fine tuning options than JB4 but still pretty simple
3. JB4 - Simple, awesome support, E85, maps updated monthly
I run 17.5lbs with 40-60 mixes of E85 and 91 with a JB4 G5 and DCI only (420whp consistently on virtual dyno with no scaling). I think for the investment none of the other tunes will come even close to matching that. That being said if I want to go farther now I need to get a set of RBs and a Cobb anyway to get fueling nailed down.
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