Big Gun 09-14 Suzuki LT-Z 400 QUADSPORT Power Box

This is the Big Gun TFI Power Box, designed specifically for the 2009-2014 Suzuki LT-Z 400 QUADSPORT. It's built to give your ATV a noticeable performance improvement by fine-tuning how the engine handles throttle input and fuel delivery. If you've added an aftermarket exhaust, this power box is highly recommended to get the most out of your setup and ensure everything works together smoothly.

What makes this unit stand out is its plug-and-play design. You don't need to be a computer expert to adjust it; there are integrated buttons right on the faceplate for easy tuning. It works by optimizing your throttle mapping and fuel injection without interfering with your stock ECU map, which helps maintain reliability. The construction is solid and weather-resistant, meaning it's built to handle the rough conditions you might encounter off-road.

Installation is straightforward and can be done in minutes, and you won't need a computer to make adjustments. This third-generation technology is a popular choice for riders looking for improved horsepower and sharper throttle response, especially in the mid-range where you need it most.