common to have lightened flywheel and mag wheels - not goddam huge chromies but superlites or proper "magnesium alloy" nowadays "lightweight alloy type" wheels...
and if anyone is chasing a few poofteenths of a second
then lighten the rest... else i wouldnt bother as it would weaken it most probably, nothing like having a lightweight custom $1000 driveshaft break cos it was weakened