97-05 GM Gen 3 & 4 5.7L LS1 / LS6 & 98-01 7.4/8.1L Coil Near Plug – FC-4580

FireCore’s High Output CNP Coil for the GM 1997-2005 5.7L LS1 / LS6 and 1998-2001 Medium duty 7.4/8.1L.

These coils are designed to work with the factory DIS electronic controls as well as aftermarket high performance ignition systems and offer 11% higher voltage and 19% more energy than OEM Coils. The resistance and inductance values have been optimized to increase output at higher RPM levels. The higher energy output is critical when used on turbocharged or supercharged engines with higher that factory boost levels or engines that have been converted to E85 fuel.