I recently purchased 2 HI BIRD Quads. I would like to give the 250 more power and in my readings I understand the number one way to upgraded it is to put in larger jets and a better exhaust. I have been searching the internet for both Can someone give me some assistance as to where I can find the items or other things I can do to increase the power.

 

You may have better luck posting this in a different area. Such as "other quads", or "performance mods".