I guess its up to you and what you want to spend your money on. For me, my next mods are going to be internal engine work. Cams, pistons, rods, valves. After that, its nitrous time baby.
I think that Sara is trying to sell her evo exhaust for the GT. Send her a PM, Brent, if you're interested in that exhaust. She hasnt had it long, and you could buy it cheaper from her than new. Your call though.
Congrats on the header, glad you like it. Now you are going to start getting pms from people now asking about it, hehe.