On the other forum, MSF, there were concerns expressed about the catted ebay using low a low flow cat that really caused problems.
The catless version is getting good support. So, if OP can go catless, it is a good performer for the price.
Only thing I would add is that if it is short term performance that you are interested in, this will perform well in the catless version. I do not expect it to hold up as well. It is China manufactured and the thickness of the pipe and the design and thickness of the bell-mouth is not up to American quality standards like Cobb and TurboXS.
Personally, I'd spend a bit more and get something like that in my sig - the TurboXS - design and quality is superb, fit and fit excellent. Very high quality flex joints in both the downpipe and testpipe sections. It will outlast the engine. Nice complete set of all types of adapters, gaskets, donuts, etc. so you can make sure it will attach properly to your CBE and any aftermarket CBE you might add later.