Big Gun TFI Power Box for 2010-14 Polaris Sportsman 550 Models - 40-R54J 2008 Yamaha YXR700FDU Rhino Ducks Unlimited Edition 2008 Arctic Cat Panther 660

2008 Arctic Cat Panther 660

2007 Polaris RMK 600 HO w/144" track

1996-00 Yamaha Wave Runner GP 760

2013 KTM 250 XCF-W

2003 KTM 950 Rally

Big Gun TFI Power Box for 2010-14 Polaris Sportsman 550 Models - 40-R54J 2008 Yamaha YXR700FDU Rhino Ducks Unlimited Edition 2008 Arctic Cat Panther 660Big 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