hey guys. I just bought a 03 250 with a 7.3.
I want to know what programmer to get.
I mainly use it for towing. don't. really want to chip it just want to play with transfer settings.

 

transmission settings. stupid spell check.

 

Welcome to FTE.

Come down to the 7.3 forum and do lots of reading. There are things you need to do before you tune the 7.3 engine. Ask questions before you buy/do anything to your truck. The people on here have done everything that can be done to these engines by trial and error.

Do it once, do it right.