actually the resistance is far less on magnecore/msd/nology wires versus OEM type replacements. Is that a mod? yes IMO

Its like power wire to an amplifier. The difference between say 8 awg and 2 awg power wire is the less voltage drop with the larger wire(due to the decreased resistance) so the amp will be able to provide more.

and slotted/drilled rotors are also a modification. Stopping distance is decreased, heat is typically decreased. and stock rotors just plain suck and warp easily.

1998 dodge avenger 4 cyl AT
Mods are:
Not enough