Dude , a glass pack is a single tube with a straight through flow with no chambers , its not even considered a muffler, its like a resonator. You have less backpressure with a glass pack and it really don't matter which way you put a glass pack on , cause you can see straight through a glasspack If glass packs don't pop somethin is off
dude I got the vid of my bronco and ill upload it later, but it is off of my cellphone. It aint to bad of quality