Can someone help explain these options?


Dec 16, 2022
Car is manual.

Can someone explain more depth the redline and ignition cut options? I know the Ecu does a fuel cut at rev limit which can cause power loss after shifts.

1- is the oem rev limit 7200? And can it be adjusted?
2- is the MHD shift bog option and FUD bit 4 on the jb4 the same? and that turns the rev limit into an ignition cut?
3- jb4 2 step relay- I know this is for launch control but can this be set to the revlimit without clutch being depressed and or would that be the same as the mhd shift bog/ FUD bit 4 option?

just want some clarification on this! thanks.