For those not willing to go Deep-SEE diving into the Mariana trench of this thread, here again is a refreshed image of the all aluminum exhaust system with aluminum Ultra-flo type mufflers and all. These start at the collectors tails and dump out just before the rear differential. Tail downturns are not included in this image. 20 Lbs and some pennies.
Damn, that IS light! My Spintechs alone are probably close to 20lbs. Unfortunately, exhaust is one place i will never skimp on quality. Thin/light exhausts are loud... and not in a good way. Another unfortunate truth, is that the heavier the exhaust, the better it sounds. My Challenger's exhaust aint gonna be much bigger than that (T/A style, one piece), but it'll probably weigh twice as much. One small mercy is that that weight is as low, and central as weight can get in a car.
