i think i found a good deal on some remus slipons for my 620
but my biggest question is if this is a bolton thing or would i have to take it to the
dealership and get it done?
It's a pretty basic job. If you've got any mechanical inclanation you should be fine. Just remember if they are highmouts you'll need to remove or reposition your emissions canister if it hasn't been done already.
so i dont have to flash a computer, or any of that (previous bike experience)
IF you do not alter the intake side that would alter the Fuel/Air mix - like adding a highflowing air filter and/or opening up the airbox lid then no adjustment *should* be necessary.