Tuning your truck or 4x4 with the right exhaust mods is a tricky thing. If everything is set up correctly, then horsepower, torque, and mileage go up because the engine is working more easily and is ...

Your 4x4’s exhaust system has plenty to do getting spent fuel and air out of the back of your rig. Modifying suspensions or drivetrains for off-road performance and reliability on the trail makes ...