I have used the search button and I find partial answers to what I need to know. I have a stock 07 heritage. Could I get away with Xieds, and add a K&amp\\;N fliter and Rush slipons? Since this is all I want, could I do just the Xieds and the slipons? I open to all suggestions, I would love to have a SERT and S/E air cleaner,but I just dont have the cash to do this.&nbsp\\;

 

Thats basically the setup I use except Ive also added the fuel pak. If I was only going to use one it would be the XiEDs. The XiEDs will help the a/f ratio in most of your riding time. The fuel pak only helps when you are hard on the throttle, it does nothing while cruising.