Found out something interesting, the stock tail light weighs 963 g and the jdm tail weighs 1369 g, that's almost a pound per light. 😉

 

Weapon R intake manifold is 3.2 lbs lighter than the stock aluminum lower plenum plus upper plastic plenum. 3.7 lbs lighter if you include the VTEC engine cover and bolts.

 

Some new stuff to add to this list.

dashboard (Not including glovebox, stereo, heater core, blower motor, airbag, airbag cover): 12.8 lbs
steel dashboard support beam: 24 lbs
steering column: 7.2 lbs
Heater core: 6.6 lbs
front wiper motor: 5.6 lbs
hood latch and release: 2.4 lbs
one rear door glass : 4.96 lbs

 

One rear quarter window 2 lbs. 😉