Dynomax Super Turbos Suck

Should have looked in to Spintech!

Yuuup! Thats what I got, X2. Single is on my turbo 6 now. No rap, no resonance (on a 451), solid units. They weight about 6 lbs a piece though....do they still make these? Mine are old, got them used, but I cant see how they would wear out. Like a metal box with a hole in each end....