Hey all, I'm smelling a strong odor inside the car (interior) that smells like gas and exhaust fumes. If I open the trunk, I can smell it really strong. I just got the right side muffler replaced due to it being ripped off by a high parking brick in a Chase parking lot. When i was driving without the muffler, I didn't smell anything. For the first day the muffler was put on, I didn't smell anything. The following day I began to smell the odor. I'm not too sure if its the muffler or something else.