Exhaust Help! Options

[4gen3sgte]

Hello Everyone, I need some exhaust help.
I currently have a 2001 celica gt that I am putting a 4th generation 3sgte motor into.
Right now I'm working on the wiring and am almost done with it, so I'm starting to think about the exhaust since that is coming up.
I would like to install a 3 inch exhaust system throughout the whole car but as far as I can see companies are only selling up to 2.5 inch kits since most normal celica owners would not really need 3 inch pipes.
Does anyone have a link to a 3 inch set up that would work with my celica?
I am doing a no-cat exhaust, and would like a better performance exhaust over sound..
thanks in advance everyone! : )

[4gen3sgte]

thank you, thank you! still isn't finished though. Hopefully everything works just fine, been sitting in the garage forever, so it is going to be pretty exciting! I will put some pictures up once I have more finished. I took the engine back out so I can have access to all of the wires while I'm working on figuring out how to wire up everything.

Any idea what a ballpark number would be for 3 inch custom exhaust?
thanks!