We will have the 2081s on the next shipment in a couple of weeks.
In testing, most said they couldn't tell any difference between the f0801 and the 2081, but a few thought it actually added a little more bottom end.

DJ (factory driver) said he liked the way the bottom end felt on the Argus with the f0801 because it gave it a very usuable power band. We have on going testing with these engines and pipes to offer everyone something to suit your needs. We also have found out another team driver likes the feel of the 2050 pipe.