Empire exhaust & reflash combo for polaris xpt +27 hp

Empire Industries Dual Slip on Exhaust Combined with our ECM Reflash for the Polaris RZR XPT+ 27 HP gain to the rear tires with this combination. We have remapped the ignition timing and fuel curve as well as raise the speed and RPM limit. This reflash is 91 octane safe. Send in your ECM and we will reflash it and send it back to you