Join Date: Apr 2012
Location: Twin Cities, Mn
Any time you change the way a fuel injected motor breathes, you need to address fuel mapping. Add more air...remap. Add more fuel...remap.
Carburated motors do the same thing, but it's taken care of with jetting.
Remapping isn't a big deal, there are a ton of aftermarket products that are user friendly.
I've noticed that most pipes for Victory come with a breather upgrade and mapping. If the exhaust you're looking at doesn't, it's not very expensive to have the ECM flashed to your new setup.
2012 Cross Country
2005 BMW Dakar