To make a long story short, to keep your active exhaust open and have your car be as loud as it should be drive with your car in track mode. If your car doesn't have track mode from factory you can buy the Z Automotive tazer and unlock it. (No other drive modes open it fully not even custom with everything set to track)
To make a long story short, to keep your active exhaust open and have your car be as loud as it should be drive with your car in track mode. If your car doesn't have track mode from factory you can buy the Z Automotive tazer and unlock it. (No other drive modes open it fully not even custom with everything set to track)