I have been running the Nightstick with a L.A. Choppers adj. end cap in the fully open position accompanied by an open A/C and ViED's. I have an PCV in the mail from FuelMoto tuned for previously stated setup.

My question is if I was to install the Supertrapp open end cap, replacing the L.A. Choppers end cap, would that require the tune to be modified? Do any disks need added or taken out? I am running the originally supplied amount of disks at this point with just replacing the original solid end cap. Unfortunately, I do not have any dyno tuners locally that are worth a darn.