Yeah, it's based of a mod chamber. I prefer the mod myself ...and it also fits alot easier!.
It is definetly lighter than the aluminium but I'm not sure about the exact weight. I will bring it to my shipper and weigh it on their scale.
U wanna make a c/f TNT??? LOL J/K Your mod looks freegin GREAT!!! Everything I heard is that the c/f chambers start losing power as soon as they start to build a little heat-I rode for 3 hours w/one of crammit442's c/f limited chambers behind my Lamey and never really felt a power loss or a change in exhaust note. I for one really like my TNT (w/it don't leak exhaust LOL). But am a huge fan of the good ole mod chamber as well. If u come to the Pensacola ride, bring 1 with u and I will bring a Alum limited,mod, TNT, alum blaster mod, and a c/f limited and then we can have 'chamber day'. LOL
It's a dam shame they are not having a build off-I would duct tape all my chambers together long enuf for the contest.LOL