The TR6 ignition provide us with a safer method of limiting revs by interrupting the ignition instead of the fuel supply and it comes with a 2 step.No. I have had misfires before on other cars and setups and usually the coil pack was the cause of that. Im on TR #6 over about a 5 year span and this is the first time i have seen one leak. To be fair the engine was not pushed hard on this module so maybe it would have backfired.