I have stock yfz450r 2014 is it safe to only install full Dasa till I make money in month or 2 then install fuel controller and filter or they have to be all in one installation.
I only drive it 3-4 hours a week
The Vortex will improve the throttle response and remove any emissions requirements from the computer. It will make it a better quad in general regarding performance. I would not put an exhaust on without a Vortex.