I'm back firing pretty bad. It's to the point when I shift gears I can hear a quiet pop. I rely on engine breaking...That's how I was taught to ride sooooooo I can get a solid 4-5 popping noises when I down shift. So the only way of fixing this problem is to buy a power commander and get my bike re-mapped right?

If I decided to not do anything about this back firing what's the problmes that it could cause to the engine?

I'm on an 06 Kawi 636 21,000+ miles.