Changed my mind after more research:
Price on Kooks headers 1 3/4 -1 7/8 stepped to 3" collector SS, Kooks full 3" xpipe w/cats SS (also price for full 3" offroad xpipe SS)
edit: How about Stage8 locking bolts and Remflex exhaust gaskets? Also, Bassani SS 3" catback with 4" tips?