How to Tune a Big Gun TFI Power Box For a Dirt Bike Or ATV

7 mins read

Last Updated on September 17, 2022

You may be wondering how to tune a Big Gun TFI Power Box for a dirt bike or ATV. Whether you want to install an aftermarket exhaust system or make the most of performance upgrades, this guide will help you find the right power box for your needs. In this article, we’ll cover the basic tuning process, the warranty, and how to install an aftermarket exhaust system. But before we get started, we’ll talk about why tuning is necessary for your vehicle and why it is a good idea to check the manual first.

Installing an aftermarket exhaust system

Changing your exhaust can improve the performance of your vehicle. Big Gun exhaust systems can increase the power of your machine. While most exhaust systems will increase power, you should be aware of some drawbacks to installing an aftermarket exhaust. Here are some of them:

First, you must tune your fuel system. This can be done using a fuel controller, like the Big Gun TFI Power Box. The Big Gun TFI Power Box is a plug-and-play device that will help you tune your vehicle for different modifications. Installing a higher-flowing exhaust will solve the problem of running lean, and a Big Gun TFI Powerbox can help you cure this. The Big Gun power box is a plug-in device, and installation is fairly straightforward.

Big Gun produces several different kinds of exhaust systems, including a Big Gun EVO exhaust. There are several versions of the Big Gun EVO exhaust, and you can choose the one that best suits your needs. Big Gun exhausts are made of lightweight materials that help you lose weight while still increasing power. They also feature removable spark arrestors for improved airflow and noise level. The Big Gun exhaust pipes are available at Dennis Kirk, and they ship the same day. You can even get free shipping with your order of $89 or more!

Whether you’re tuning your Big Gun ECO exhaust or a full-blown Big Gun, you need to upgrade your exhaust. A good system will increase your horsepower and torque and improve the sound of your bike. A quality exhaust will also save you money. Big Gun exhausts are available for motocross bikes and modern sport machines. If you’re looking for a new exhaust system for your Big Gun, check out Big Gun’s EVO R exhaust. It is an excellent choice for those looking for an affordable option.

Tuning a Big Gun TFI Power Box

If you’ve got a new fuel injected vehicle, tuning the engine will be easier than ever. A Big Gun Power Box allows you to tune the engine properly for increased throttle response and improved performance. It also cures the lean problem when installing a high-flow exhaust system. Unlike a traditional carburetor, this device does not trip engine lights, so tuning it yourself is easier than ever.


The Big Gun Power Box is a plug-and-play fuel controller that allows you to tune your fuel-injected vehicle properly. This product improves throttle response and corrects the lean issue when installing a high-flow exhaust. The unit comes pre-programmed for middle-of-the-road performance and includes a warranty and free return shipping. To learn more about this product, click the link below. After you buy the Big Gun Power Box, you should read through the included user manual to learn how to use it properly.

If your Big Gun product is defective, you may contact the manufacturer for a repair or replacement. If you have purchased a product through an authorized Big Gun distributor or dealer, you are covered by a one-year warranty. However, you will not receive credit for the product if it has been mounted on your vehicle. The warranty does not cover labor or other costs. Big Gun will ship your product via UPS Ground shipping or USPS Priority Mail.

Proper tuning

A plug-and-play fuel controller, the Big Gun Power Box allows for proper tuning of fuel-injected vehicles. This device increases throttle response and cures the lean-out problem created by higher-flow exhaust. This device comes pre-programmed for middle-of-the-road use. The user must only change the settings based on the manufacturer’s instructions. If the vehicle’s engine is already lean, this plug-and-play fuel controller will not correct the problem.


You can install the Big Gun TFI Power Box in almost any vehicle that has an aftermarket exhaust system. Its plug and play design eliminates the need to worry about the box interfering with your stock ECU, making it easy to install and tune. The Big Gun TFI Power Box can also be used with your stock LTR, making it the perfect solution if you are looking to increase power and boost throttle response.

Big Gun Power Box fuel controllers are warrantied against defects in materials and workmanship. The warranty does not cover excessive water damage or improper installation or tuning. To verify that your Big Gun power box is installed correctly, try running it with a low load. If it runs smoothly and has no problems, the LED should be flashing and solid blue. The LEDs should scroll back and forth for several seconds. A properly installed Big Gun Power Box will have one or two slow flashing green LEDs on the far left.

The Big Gun Power Box is a plug-and-play fuel controller that enables your vehicle to receive proper tuning from any nitrous oxide (nitrous oxide) pump. This system will enhance throttle response and cure the lean problem caused by higher-flow exhaust. It also has a middle-of-road setting, which will make it easy to install and use. However, before installing the Big Gun Power Box, you need to perform a vehicle analysis.

About The Author

Mindy Vu is a part time shoe model and professional mum. She loves to cook and has been proclaimed the best cook in the world by her friends and family. She adores her pet dog Twinkie, and is happily married to her books.