friend of mine just got these put on his car , he about crapped his pants , havent dynoed yet but I have an article at home in an older 5.0 mag ,where bassani midlengths and catted x pipe went from 309 rwhp to 343 rwhp , I would say by the way he ran beside my car afterwards that he is closer to 350 rwhp or more , that thing is flying now , before it felt like it was holding back , now its wide open . busting the tires up in third , before would barely chirp second .
Mine's only a stage II though....
She still thinks that the KB blower is an engine part that I broke on my way from work to home!!!
But, that's just .... mean. 
