Add some more style by upgrading your J-30 Power Programmers. The easiest way to add power is with a Power Programmer. You can�t miss with J-30 Power Programmers. Configure the engine mapping with a Power Programmer. Treat yourself to more luxury with new J-30 Power Programmers. Choose from presets or create your own with a new Power Programmer. Power Programmers are easy to use and great modifications.