Worn ignition coils on a high-mileage LS show up as a soft idle, a stumble under load and lost power at the top of the rev range. This eight-pack of Blaster Series coils is a bolt-in replacement for the factory coils on 1999-2017 GM LS applications, using the original mounting locations and OE connectors so the swap can be done with hand tools in an afternoon.

MSD 826583 Blaster Series Ignition Coils Features:

• Set of eight coils covers a complete V8 tune-up.
• Direct bolt-in replacement for OE part numbers 12570616, 12573190 and 12611424.
• Fits LS2, LS3, LS4, LS7 and LS9 engines in cars, trucks and SUVs.
• Black housings with factory style connectors.