you would get even better if you had a Ramair or unifilters (keeping it all under Bear Claw)than the 2780's as they only just cope with airflow
@ricochet if you don't want go a dyno, get which ever air cleaners you want but "Bigger is Better" and get either the Tors or a set of Staintune mufflers ($$$$) they are a sweet sound and loader I can give you a tune to make which never set up you decide on and if you want to go that little bit further get a PCV + AT and run my "AFR Map" in it