REV Ignition 8 High Output GM 12558693 LS Series Square Ignition Coils RD1003R ZDDP

REV Ignition 8 High Output GM 12558693 LS Series Square Ignition Coils RD1003R ZDDPRev Ignitions RD1003R is specifically designed for your GM LS series engines. The coil housing has the same design as the original equipment coil. However, inside the coil the secondary and primary windings were engineered to deliver at least 10% to 15% more spark the than OE coils. The high performance coils significantly improve the engine combustion making for a smooth throttle response, more efficient burn and ultimately improved gas mileage. As a

Compatible with OEM numbers: 10489421

Direct bolt-in to factory connectors

It is important to note in all cases

2004 -2008 4

Rev Ignition’s RD1003R is specifically designed for your GM LS series engines

Due to the short design of the the LSX style engines there is a lot of heat near the plugs causing premature wire failure which costs you power

Designed after receiving requests from engine shops which were experiencing high amounts of early cam failure after an engine build

This wire set eliminates all of those concerns

1997-2014 4

If you have any questions regarding the fitment of these wires with your vehicle

4L V8 Engines See fitment table below

Rev Ignition’s RD1007R is specifically designed for your GM V8 engines