If you’re looking to add some serious spark to your 2005+ Corvette or Camaro V8 (or any 2005+ GM car with LS2, LS3, LS7, LS9, LSA, L92, L99, and L76 engine), Granatelli Malevolent Coil Packs have no equal. These GM coil packs are not only much higher output than stock; they are nearly double the output of their closest competitor. Featuring a whopping 85,000 volts, the Malevolent coils are guaranteed to ignite even the craziest engine setups.
Though the stock GM coil packs have a decent output, there’s still room for improvement even on an otherwise stock engine. Granatelli did some extensive dyno testing with these coils and found that they would consistently gain 6 to 8 horsepower on stock applications and sometimes as much as 12 horsepower with no other mods. That’s a crazy gain for something that bolts on in minutes. Even better, on heavily modified, boosted applications these really shine. They have been shown to improve output by as much as 19 horsepower in those applications. Continue reading
