PRODUCT DETAILS
The Big Gun TFI Power Box is a plug-and-play fuel controller designed to compensate for the increased airflow of an aftermarket exhaust. Pre-set with a middle-of-the-road tune — approximately 80% of customers don't need to adjust further.
- Plug-in technology — installs in minutes
- Plugs directly inline with stock injector harness
- Increases horsepower and throttle response
- Pre-set tune compensates for aftermarket exhaust
Note: Not ARB/CARB compliant — cannot be sold in California.








