First off, frank is hilarious. Explained to him what my tuner is trying to charge me to ecu edit, and it's ridiculous. Sent my ecu to frank, and he not only worked on it, but returned it same day. I'm excited to see the fans come on sooner, and how much more she pulls over the z-bomb. If your ecu is still stock, send it off...... No dyno needed cause My bazzaz is still doing fuel big thanks to powerhouse!!!