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

Rev Ignition’s 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 commitment to quality, each coil is factory tested. Fits 1999-2009 4.8L, 5.3L, 6.0L, 8.1L GM engines see fitment table below 10% to 15% more Spark over original and replacement OE coils Direct bolt-in to factory connectors Compatible with OEM numbers: D581, UF271, C1208, 12558693, 39288925 Will convert from 12 volts to more than 25,000 volts Improved throttle response, more efficient burn, improved gas mileage 100% copper wire in assembly Each coil is factory tested