The MoPar ECU (now discontinued and for all practical purposes unobtanium vaporware) was never designed to "make" hp. The newest parts manual says in effect: 'requires roller rockers, headers, cat back, hoses/flters to make up to 50hp' Hee hee !!
It allows the HP that those 5 other mods make work more efficiently. It eliminates about 75+ pages of programming, including emissions related "engine light" stuff. Yes, it will stop CK lites on improperly made/installed 2000-2002 headers.
You see, it is not technically street legal. Because of emissions.
And it RAISES redline about 300 RPM.......