The MSD Ignition 2-Step Ford Modular Rev-Limiter is a high-quality ignition module designed specifically for Ford Modular engines from 1999 onwards. This was on a 2003 Mustang Cobra SVT for only a few months before the car was sold. It's in excellent shape, instructions are included but no screws. Don't have the original box. What you see pictured is exactly what you will receive. Thanks