Earl, Earl, Earl. No one here is trying to be disrespectful so there's no need to get butt hurt and offended. You've been a member here for over a year so you should know that searching for info on questions you have is a forum rule, not just a suggestion. We are here to help but we're not here to spoon feed every new member answers to all their questions. If we did, this forum would get so cluttered that it would be nearly impossible to organize it so it worked efficiently. That includes beating a dead horse by creating new threads for common topics by every new member that comes along.
Also you'll get a lot more help from the forum if you make intelligent, mature comments. Your OP is a rambling, nearly impossible to read mess. I know the importance of spelling, grammar and punctuation are going the way of the dodo bird in this new age of texting and Twitter which is cool for one or 2 sentence messages but here it is still appreciated.
I will encourage you to read through this definitive thread and you are welcome to ask questions to your heart's desire there, the thread's purpose is to answer every single question you've asked. On a side note the best sedan exhaust is relatively unobtainable due to the minute number of systems produced (~22), the Motordyne VQ. If you ever see one pop up for sale jump on it. It sounds soooo sexy!