Having a Multiple Spark Discharge (MSD) Ignition in your ride helps your engine to burn the fuel and air supplied to your engine. Engineered by two missile experts, MSD Ignition has become the best-selling performance ignition of all time. The invention of MSD made the cycle of multiple sparks per combustion possible. MSD Ignition effectively ensures that the air and fuel mixture are fully burned out. By nature, automobiles work on the theory: the better combustion the engine performs, the more power is produced. This same formula is used by MSD Ignition products, thereby, producing horsepower in tremendous amounts.MSD Ignition also works with the capacity discharge principle. The basic factors of this principle are produced in the well-known MSD Ignition Box which is a vital part of almost all MSD systems. But rather than just a capacitive discharge box, MSD Ignition has been similar with the top performing ignition system parts of all kinds as magnetic trigger systems, tune up parts, billet distributors, plug wires and coils.MSD Ignition can boost power by itself. Butif this is combined with MSD Spark Plug Wires and MSD Distributor Cap, you'll achieve the performance you never dreamed of - all for a low price. MSD Distributor Caps have terminals that are brass-made to achieve the best possible conductivity feature. MSD Spark Plug Wires, one the other hand, have as much as 30 times the resistance of RF wires.So, remember: It doesn't matter how great your exhaust, injection and intake systems are. Without MSD to light the perfect mix, all effort would just be wasted.