As a data point for superchargers...I reweighed my 2018 SS 1LE (1SS/only option is PDR) after installing a new takeoff LT4 supercharger unit and all GM ancillaries except for the ADM water reservoir and K+N panel filter...
Weight gain was 82 pounds (current no fuel/no people weight is 3729).
Pre-blower weight (kilograms):
Post-blower weight:
Note: the current weight includes new front rotors/4 tires, and the addition of a wideband gauge install - all account for 6 pounds increase from pre-blower weight (I weighed all old and new parts...).
Pleasantly surprised at the low weight.
Dyno test on Friday to see overall return on investment...;-)