Upgrading your ignition coils? This 4-pack of Pigtail Harness Connectors is made for AEM Smart Coils (like part #30-2853) and other IGN1A-style coils. Each connector has 12 inches of wire (11-inch wire plus connector) with labeled pins A through E for easy wiring: A for ignition signal, B for logic ground, C for spark ground, D for power ground, and E for 12V power. These are aftermarket replacements but built with quality materials for reliable performance. Perfect for engine swaps, coil upgrades, or repair projects. Just match the pins, connect, and you’re set. No guesswork, no hassle – just plug and play.