[Chris V]

The only stuff you remove is the plastic intake manifold.

You add:

Blower
Low temp radiator
Pump
3 gallons of coolant
Hoses

My car was 3,663 stock.

I last weighed it with MCS dampers (-40 pounds)
Good Aero wing (+10 maybe? Carbon wing with steel uprights.)
I have a custom Cordes Performance AWIC coolant tank, which probably weighs a pound or two more than the junky blown plastic one Whipple ships
Z28 wheels and 305/325 PS4S
Carbon Splitter and hardware (probably +8 pounds)

3,795 pounds.

It adds a lot of weight. The car handles it quite well, but I am pondering a 427 N/A build.