i'm looking for some of your answers bigd, i saw them yesterday... for now check this out. stock 2.4 altima... esc on, then esc off.
auto v6 dodge avenger. ESC @5.5 psi, headers, 3" exhaust, 60 mm throttle body = 96.5 hp gain..... at 5.5psi. did i already mention that that's at only 5.5psi?
dyno charts here....
http://www.boosthead.com/installation_docs/doc24.htm