Chevy Gm LS1 LS6 12V High Output E-Poxy Ignition Coil Red [Square D585] 8pcs They're 40 percent lighter

They're 40 percent lighter

So can features such as full ball-bearing construction

that have a 4bolt pattern

These Speedmaster Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume

The main difference is that there is an open area under the plenum chamber

Chevy Gm LS1 LS6 12V High Output E-Poxy Ignition Coil Red [Square D585] 8pcs They're 40 percent lighterFailure or poor performance from a coil can result in a misfire, a rough running, hard starting engine, and excessive emissions. Speedmaster's ignition coils provide the performance needed to help keep vehicles running the way that they were designed. These coils have corrosion protected laminations to protect coils from the harsh operating environment