Well just as a point of fact, there is only one aftermarket S/C pulley and it is made by Code3. TVT has been testing machining down the stock S/C pulley, but not sure about the full results yet.

As for your other choices you have the Eurocharged 185mm Crank pulley. Eurocharged also makes a 178mm crank pulley and so does ASP.

This is an ongoing debate that has been discussed ad nauseum, just search for it and read the many many threads on the topics.

Some people swear the ASP is the besty pulley and some people swear the Eurocharged 185mm pulley is the best.

I'm in the latter group, I feel the Eurocharged 185mm pulley is the best pulley for the money and provides the opportunity for the best power and ETs as long as it is accompanied by the correct supporting modifications.

...good luck with your modifications...

P.S. I would say go with the Eurocharged/LET tune for the best results with whatever pulley you choose.