If you change the pipes and air intake your going to need more fuel. There are several ways to get fuel but I'd Either do a SE down load or install one of the tuners. ( Don't waste your money and go with a tuner ) . What's the right tuner ? Talk to the pro's on this site. Get there phone # and give them a call and then make your choice.
2010 FLTRX , Stage 1, 13" Madstad, Mono tubes, SuperShox, Heritage style bars. Alpine CDE-HD149BT,Soundstream Picasso Nano Series PN4.520 , 5X7 and 6.5 Infinity Kappa speakers
If I have to explain ,you wouldn't under stand anyway.