i have just got my s/h 2012 night rod special,it has v&h slip on  and 2into1 comp pipes with it,i my want to put some toxics on it.

so i am looking at putting an auto tuner on it as i am lazy and don,t want to have to retune when ever i swap.

what is the most cost effective way to do this with best bang for buck.

also what is the best air cleaner set up for this as i have seen k&n filters and also seen open top mentioned ,can somebody explain this and let me know the pros and cons for both, i am no racer but would like good performance without to much work.

regards