Finished my install of my Cattman Headers/y-pipe 3 days ago (Heatshields For The Lose) and wired up my O2 Sim. No CEL/SES codes YET and I've driven about 70-80 miles. Do I need to reset my ECU or do anything special like throttle position relearning?

I plan on getting Dyno runs + V-AFC II or E-manage once the exhaust gets broken in and i'm sure there are no issues.

Please advise the next best course of action.

 

I reset mine for kicks...no need for a throttle learn or anything.

 

You don't have to reset anything. Only reset the ECU if you had codes that needed to be cleared before installing the sim, but it sounds like you didn't, so you should be good to go.