Wonder if you plan to make any changes in the air box? Some feel that in order to get the most out of a freer exhaust and a fuel controller you need to open up the air also.
The stock air box seems to be slightly restrictive to reduce noise. Intake noise will go up a bunch if you do open it up. Some choices, Big air kit, Leaving the top off the air box holding the filter with screws and washers, and the Brain mod putting a one quarter inch rubber spacer between top and bottom of the air box. The least noise comes from the Brain mod.
I kept my Liner stock. Didn't want the mileage loss and noise increase. But is something to think about. Is easy to restore it to stock on the last two. The Brain mod gets its name from its originator.