I'm going to cut off the horrible Advanced Auto mufflers from my car, and put the stocks back on and then a glasspack where the resonator is. Now would it be cheaper for me to get the glasspack and mufflers, or just go to a muffler shop and tell them what i want. If i got them myself, i'd clamp them on myself unless some welding was needed, then i'd have to talk to a muffler shop. I know the shop around here is known to overcharge so what do you guys think i should do?