2.6" Pulley

I want to order and install a 2.6" pulley on a 2006 Chevrolet Cobalt SS Supercharged 2.0L ecotec, but am wondering if it is really worth it? Has anyone here installed one yet? If you could include pictures that would be appriciated.

I replied to your thread on cobaltss.net, im InfraRedline over there. If you need I have some 60# injectors for sale, you will need them to run that pulley