The TFI Power Box is a plug-and-play full controller that allows for proper tuning of your EFI vehicle. This controller comes pre-programmed with our recommended map for your vehicle with a Big Gun� exhaust system and features integrated faceplate buttons that provide easy adjustment. This Power Box is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and a high level of craftsmanship to ensure everlasting reliability and value unlike any other on the market.