Polaris 2016 570 atv
 

I have a hmf titan xl pipe on my bike. Do i need a programmer for this set up???

I am sure that a retune will give you the best performance for the machine. Any time you change the way the machine breathes will change the way the machine behaves. Send me a PM and I can get you in touch with someone that will know exactly what you need for a tune and help you get the best out of your machine.