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Big Gun TFI Power Box for 2008-09 Honda TRX700XX Models - 40-R58 2007 Polaris Sportsman 500 HO 4x4 LE EFI Sagebrush Green/Black 2005-07 Ducati SS800 SupersportBig Gun Exhaust TFI Power Box Increases horsepower and throttle response Installs in minutes Third generation technology No computer needed to adjust EFI Plug in technology (Does not interfere with stock ECU map) Integrated faceplate buttons provide easy adjustment Highly recommended for any EFI unit with aftermarket exhaust 1 Year Limited Warranty When installing an aftermarket exhaust, proper tuning is a must. The Big Gun Power Box is a plug and