o man. i've gone through this one before. well, compliments of websters dictionary, i got this!

Pronunciation: 'fOr-&m, 'for-
Function: noun
Inflected Form(s): plural forums also fo·ra /-&/
Etymology: Latin; akin to Latin foris outside, fores door -- more at DOOR
1 a : the marketplace or public place of an ancient Roman city forming the center of judicial and public business b : a public meeting place for open discussion c : a medium (as a newspaper) of open discussion or expression of ideas
2 : a judicial body or assembly : COURT
3 a : a public meeting or lecture involving audience discussion b : a program (as on radio or television) involving discussion of a problem usually by several authorities

now it is for open discussion correct? ok well where does it say it's supossed to be helpful? I DONT mean to be mean but you're not always gonna get help in here. you're gonna get alot of one sided and biased opinions. it does say that it's basicly a pub for open discussion. im sorry that my response didnt help. and if i hurt your feelings, well sorry again. i was just trying to give you a little advice. and apparently you took it the wrong way. i guess at this point, well all i can say is, good luck with your exhaust setup.