Performance Distributors GM LS/VORTEC SOS Coils - Manual

Shocking: Performance Distributors’
SOS Coils On Our CTS-V Coupe
!
For decades, the mechanical distributor and single coil
ignition system was found on just about every engine on
the road, but today, distributorless ignition systems are
the rule. Wasted-spark, coil-on-plug, coil-per-cylinder, or
coil-near-plug are all terms you’ll hear nowadays in
conjunction with modern spark delivery.
As far as performance goes, multi-coil ignition systems are
the ideal setup because there is no need for long, bulky,
and damage-prone spark plug wires that run to the
distributor. Having a multi-coil ignition system reduces
radio interference, reduces resistance along the path
between the coil and plug, and eliminates any potential
misfire problems caused by burning or chafing of the spark
plug wire. There’s more available dwell time to recharge a
multi-coil setup between ignition events at high RPM, and
cleaner combustion and better fuel economy are also a
benefit of multi-coil ignition systems.