turboXS: 300 + 150 = 450 (i think)
corksport 300 + 150 = 450
CPE's DP replaces both the stock DP and RP and is 550 + 140 for high flow cat if you want that. (maybe there is a cheaper place, not sure)
I personally have the corksport DP and midpipe and I loves it..I like the design more than turboXSs. Plus it's midpipe is the only one that keeps the stock hangars and uses donut gaskets (I think). It fits well with the stock CBE. I ordered the whole corksport tbe b/c I really like the sound, so thats another big reason why i went with them. There's been lots of problem with TXS RPs, but I think they took care of the problem.
Do you need a cat? I'm getting one welded into the midpipe...the cat was 80 some bucks