Super low back-pressure Quicker spool times Less exhaust valve heat Increase your HP! ~ 5 HP. All stainless steel construction Designed in our state of the art UTV Performance Center Made in America Polaris RZR XP Turbo Race Pipe Exhaust. If you want the absolute most responsive possible with the least restriction and if you like it loud this is the system for you. Restriction is the engines enemy and creates back pressure. When you remove the back pressure from the exhaust system there are many benefits. Running the Bikeman Race Pipe your turbo will spool faster, less heat on exhaust valves and make more power!