Predator Question

[04GT]

Got a Diablosport Predator. Installed the Performance Tune and adjusted it for my gears and trac off. Car seems to run great! Definitely feel a difference in power.
I've seen alot of posts out there that say you should get a performance tune at a speed shop when you get one of these.
My question is: Since it seems to be running great and not pinging or anything, should I bother doing that?

 

[hotrodnut]

For what you have done to your Mustang, the tune that came loaded is ok, it don't/won't hurt to have a special tune done on your car to get the most gains as possible.

 

[02BlkStang]

I didn't feel **** after uploading the predator tune.

 

[Kilgore Trout]

I didn't feel **** after uploading the predator tune.

You do not need 31 spline axles...