Fits 1980-1986 Chevrolet K20 Chambered Muffler SF424422-JHPR top50 The harnesses are labeled for

The harnesses are labeled for different engine types for GM and Ford cylinder banks even Holley universal coil near plug harness

This large cap spaces the spark plug terminals farther apart which lessens the chances of cross-fire and ionization occurring

Lotus Elan (1962)

4L V8 2007 - 2008 Dodge Charger SRT8 Super Bee 370/6

8L V8 1995 Ford F-150 Special 351/5

Fits 1980-1986 Chevrolet K20 Chambered Muffler SF424422-JHPR top50 The harnesses are labeled forStreet Flow, 2 Chamber Performance Muffler, Aggressive to Moderate Tone, 16 Guage Aluminized Steel, Premium Powder Coat Finish, 2. 25" Center In, 2. 25" Dual Out, 3 Year Limited Warranty. Features: Handcrafted Chambered Mufflers Installer Friendly Design With Unpainted Ports 16 Gauge Aluminized Steel Construction High Heat Premium Silver Powder Coat Finish North American Made Product Aggressive Moderate Tone Specs: Body Length (IN) 13 Body Type Oval