The chrome boxes you get today are nothing like the MP P4120534 chrome boxes of yesterday. Its just a fake Motorola transistor package mounted to a heat sink. The most expensive part of the new boxes are the plug itself. plus the OEM P4120534 wasnt supposed to be used under 2K rpm for extended time! NOT a street ignition. The whole package (P3690560 coil and P2444641 ballast) was 8K race rated.
