Before you go replacing coils, if replacing them didn't change the problem initially, they're probably okay, don't waste money that you may not need to.
As suggested, see if you can get that info requested by Longshot. Have you questioned the dealership that charged you up the wazoo for a ton of work without correcting the problem? I'd try hitting them up for not fixing the problem, that's far more important than replacing the coils again.
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Current mods: AEM Bruteforce CAI, Magnaflow SI/DO, Gryphon-87 & 93 tunes, Harley head lamps, tinted windows, lower grille filler, and FX2 lower valance.
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