If I remember correctly when we cut the M.S. 12 point cage out of my buddies G Body (GM) & did the 25.5 cert C.M. cage upgrade when all said & done it was 25-28 lbs lighter than the old cage.

1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.