Since the debate of uel vs el seems to be opinionated more and more here ..here's a good video that shows the differences of them as both idle and wot through the rpm range. Both Tomei headers too
[ame="https://www.youtube.com/watch?v=B6j94LkYo60&noredirect=1"]2011 STi Tomei EL vs OEM UEL - YouTube[/ame]
...for sound, I think I now prefer the wot and high rpms of the EL ...sounds much more free and aggressive like an F1 racecar
