Guys we have a +5mm bolt on big bore for the Polaris 570 this is a true bolt on no pipe or map change needed. Of course if you have these it will only enhance the performance. It is a very affordable way to get more power out of these machines. I would like to have some discussion with guys that have them already installed and those who are interested.Utah RZR Rentals
1404 Pilgrim Rd.
Plymouth, WI. 53073