When I drive my car I get the smell of exhaust fumes in the cockpit so much, I drive with the windows down. This started when I installed my new exhaust. I hear a small exhaust leak coming from the pass header area but I don't know if that would be enough to smell up the inside. Has anyone experienced this ? I am thinking about stuffing a rag in one exhaust tip to seal it off then stuff a rag in the other with a hose and blow smoke into the exhaust to see where it is leaking from. Will that be enough to find any leaks or is there an easier way. I gave up smoking 25 years ago,lol and i will only do this test if I can get results from it. What do you guys think ? Thanks, Kyle.