I got my exhaust pout on today. It was a custom job. I put a magnaflow muffler and 2.25" pipe from the cat back. I told they guy at the shop that I wanted a resonator put in the system because I hate the way the 1.5 sounds without. He told me a resonator was like a glass pack because both are straight through. So he put on what looks to be a glass pack. I am not sure but is he right or should I go back and make him put a real resonator on? Plus it feels like I lost power. Please help.