Probably so but you will work your way down. #2 because the bike is under a load when your moving. It amplifies the effect of a bad tune. Use my bike for example. It was bone stock and ran like shit when I got it. 200 mains/25 pilot. As I tore it down when I got home and learned it had a k and n filter. That's all! No pipes, no aftermarket reeds etc. the banshee would would run and idle for days but once you took off down the street, it wouldn't do worth a damn.