Okay, it would be nice to have a map with and without insert. I have a full Graves system on my 2014 along with a Bazzaz and there is a fairly significant difference with and without the insert. BUT, I'm not using a Graves insert so I'm not sure how much the Graves insert would change the tune. We run at NCM in October and many people were getting booted for sound so I may have to run an insert there, and would rather not run a whole race with AFRs off too much, although I would think running an insert would cause it to run a little rich which would be safer than lean.
Last edited by tdh; 02-11-2016 at 07:26 PM.