HEI Ignition Control Quick Installation Harness (8877) by MSD®. External Single Connector. Plug-In. MSD Ignition Controls are easy to install, but we also offer several direct plug-in Harnesses for late model vehicles! The Harnesses plug directly into your factory coil and harness then four color coded wires plug into the corresponding wires of the MSD.
Designed to deliver trouble-free, consistent performance
Right for your vehicle and lifestyle
Made from high-quality materials for ultimate durability
Manufactured to meet or exceed strict quality requirements
Founded in 1970 MSD®, LLC is the leader in performance ignition components today's racers need to step up their vehicle's performance. MSD has completely redefined the ignition system by using cutting-edge technology called capacitive discharge (CD) that makes it possible to spark multiple times. The pioneer in research and development of high-performance ignition systems, the company offers the finest parts, including ignition controls, distributors, coils, timing accessories, spark plug wires, and more. Every product that leaves the state-of-the-art MSD factory is rigorously tested to deliver flawless quality and push the performance to the max while improving starting and ensuring smooth idle. That's why MSD is the number one ignition choice for performance fanatics and hardcore racers in NHRA, IHRA, NASCAR, World of Outlaws, DIRT, SCORE, IDBA, and many more.
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MSD® 8877 - HEI Ignition Control Quick Installation Harness
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