I have Moe's 87mm. I like it, I think it was a great addition while installing my intake at the same time, my butt dyno definitely felt the difference. When comparing Moe's to the stock, and even Modern muscles, all three throttle bodies are the same except that Moe's and Modern muscles is a stock one, CNC ported to 87mm.
I have hemifever s throttle body. On the dyno. I got 9 extra hp from the throttle body swap.
It is definitely a difference. To say i totally feel it driving I cant really relate. However it is a worth while modification.
The con is really just cost of them. But across the board from everyone s throttle body thats bored out. Its a standard price so nothing you can do.
Great product by hemifever though!