The Pasesetter system can be had for alot less. http://www.streetsideauto.com/products. ... Reset=True
The Corksport one is stainless and will last for ever, the Pasesetter is painted and I have heard the paint they use is garbage and will peel off. Did you get an estimate from an exhaust shop? They may be cheaper.
Also, have you looked at the OBX header? Its stainless and not much more than the Pasesetter.