I recently purchased a pulley from RpmOutlet. On the website it shows being a 2.93. I received it and on the invoice is shows 2.91. I emailed them and asked them about that. They said it was a mistake on their website. Has anyone heard of a 2.91 pulley? Is it close enough to use the same belt as the 2.93. Not tying to bash Rpm. They did provide a good x-pipe to me. Just wondering what the difference is. :shrug: