What should I do next? Options

[bccentaur3]

I want to get my car dyno tuned with the safc II and see how hard the car will run if I lean I out the fuel a little. I am running pig rich at WOT and I think its killing the cars performance.

Now I know if I start leaning things out with the fpr I am at risk.

Question for you Lagos, are you running with a FPR when you tuned the 3s with the safc?

But I do also want water injection. Now both the fpr and the water injection kit is around the same price and I can only do one.

Which one should I do?

Keep in mind, with what ever you guys think I should chose I will get it dyno tuned after the mod.

[bccentaur3]

will do boss. So you would choose WI over the fpr to finely tune the car? Even with WI, I'll still be running pig rich. But WI will lower engine temp so I can more boost, so technically I can tune it still and lean it out and have the WI to help against knock?