I have a 2007 VStar 1300 with cobra exhaust and a pro series hyper charger. I still don't have all that I want power wise. Am I gonna have to go to a bigger bike or is there something else that I can do to get more juice out of my current bike? Any help would be great. Thanks in advance for your help!
1. Take the air filter cover off and drill 6 - 5/8's holes in the back of the air box. By the back of the air box I mean the side facing the ENGINE. This will let your air starved engine breathe. In fact the effect will be far greater then what you did with your exhaust.
2. With the air filter cover off (this is what I did)
Again, the back of the air box means the flat side facing the engine, no one will even notice what you have done. Its hidden by the engine.
First the left side (facing the engine) I drilled 1 hole in the mid upper area, then another slightly below that and another at the very bottom of the air box under the "ridge".
On the right side I drilled a hole near the very top of the box, one mid section and one almost at the bottom above the ridge.
Again, all holes are facing the engine. You can also drill more holes if you wish, I would start with 6.
This WILL wake up your bike but its not going to take the place of a 1700 cc bike.
3. Skeptical ??? I was too, so do this and takes five minutes and no drilling! Take the cover off the air box, DUCT TAPE the filter in place, then go take a 50 mile ride with the air cover off.
Chances are you will be like WOW, if not, put the cover back on and no harm done.