TD Drag ECU reflash with Antilag launch control: Works on Arctic Cat 2009-2011 Z1 turbo, F1100 turbo XF1100 turbo Includes our 2-step and Antilag weather resistant control box: This enables the rider to go full throttle when waiting for the green light and build boost off the line for a very hard launch ! Get them out of the hole and keep pulling away ! Best of all this antilag works off the stock ECU so it is 100% reliable and does not have "bugs" unlike other aftermarket launch control boxes. Choose 2 programs into one ECU. Typically our customers chose: 1- Powertrail 91 octane (up to 260HP) 2- Drag racing Race fuel (up to 320HP)