That's probably my issue I'm using my phone. I bout a muffler off eBay. I guess it's a eBay store muffler. It only cost about 50$ and it's basically a straight through design. I've only been able to start the car in my garage without driving it due to the 6" of snow. I'm thinking of either running another resonator or eliminating the glass packs and change them for something different, but this will have to wait because I got to finish getting the car ready for the paint shop.