I cant seem to find the answer to my question,

What is the purpose of the little metal tab that you see on the back of BHR coils/D585 coils that connect to the heatsink, here is a pic

RMS Product Details: D585 - Ignition Coil, Misc., D585

I wonder this because i have a set of coils that are missing these tabs

 

grounds the heatsink.

 

thought so I just wanted to make sure

So if im missing them, should I just jimmy rig some grounding tabs? is it possible to run them without the grounding tabs?

 

its possible to run without, but also note that it also serves as a (not ideal) heat transfer medium between the case and the heatsink, so if you can, it would be a good idea to just hack on a tab.

 

awesome, sounds like a plan

thanks for the info!