Should I remove my TRE after my ECU is Flashed?

I have a full Brock’s shortmeg exhaust fitted on my bike with a K&N air filter, PC5 with your custom map downloaded on my 2007 GSX-R 1000. I recently had Don Guhl Flash my ECU. He recommended that I remove the TRE. I was just wondering if that was correct? Also, do I now need to have the bike tuned on a dyno?

Since this is a Guhl flash you will have to talk to Guhl directly to see what combination that you should run and whether you need it tuned or not. We have no way of knowing what he did when he flashed your ECU.