MSD Ignition, any experience?

Discussion in 'Performance & Fuel' started by SlickMachine, Nov 24, 2008.

  1. SlickMachine

    SlickMachine Rockstar

    I've got an '05 Sierra, 5.3L and I'm looking for the next performance upgrade. I'm curious how much a multiple-spark ignition system would help. Is the money better spent at the coil packs? (650 to replace all 8) MSD's -6A and Blaster Ignition Boxes are cheaper upgrades but are they worth it? Any thoughts?

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