@KillaCam
Go for some thing like DC, Mugen, Spoon, HKS, AEM, etc for your setup. And Do get a 4 to 1 Headers with all the way straight pipe... I thing the civic ur having is 4-2-1.
Like u said no budget prob, then why u askin stage one should be around 20k... If ur willing to spend 20k ur ride is gonna end up being a Rice Rocket... All Show and No Go.
Go for something Branded. =)