Big Gun Exhaust TFI Power Box EFI Tuner - 40-R50A Sena Sample rate: max

Sample rate: max

Built-in FM radio

Blade Mounting Hardware included

Powder coated black frame

} Year Make Model 2014-2016 Polaris ACE 325/570/900 2017-2019 Polaris ACE 500 2016 Polaris ACE 900 SP 2012-2019 Polaris 570 RZR 2017 Polaris 570 RZR S

Big Gun Exhaust TFI Power Box EFI Tuner - 40-R50A Sena Sample rate: maxTFI POWER BOX When installing an aftermarket exhaust, proper tuning is a must. The Big Gun Power Box is a plug and play fuel controller that allows you to properly tune your fuel injected motorcycle, ATV or Side x Side in just minutes. Installing a Power Box allows you to get the most out of your aftermarket exhaust and increases throttle response. A Power Box helps cure the lean issue that is run into when installing a higher flowing exhaust and