Hey everyone hopefully a few can help me with my questions an jetting my bike. Im running cobra slash cut drag pipes with big city thunder baffles and bought a k&n filter for the stock airbox, i bought a cobra stage 1 jet kit online before doing research on which kit I need, I talked to an engineer at cobra and he thinks I would need a stage 2 kit but I can not find one. Stage 3 would be too much I have been told for stock air filter box. I plan to have the cycle shop down the road install it, they said they would rejet the carb for $100 if I had the jet kit. So my question is can I use the stage one and they add more spacers or is a stage 2 kit totally different? Btw the pipes sound awesome, the ass dyno seems to think it has more power now but to say it does is a guess. Not any slower thats for sure.