so is poppin flames out of the exhaust a sign of something bad lol? I've always thought it looked awesome and I kinda wished my car would do it and tonight me and my buddy were playing around on the interstate and he said when I passed him, it popped a couple flames out. I've been told that once before too. I just wanted to make sure that's ok. I've heard of lean popping before but Im pretty sure Im not lean lol. The leanest I get is MAYBE 12.3 and that's because Im not fully dyno tuned yet. So yea, what causes that and is it ok or bad?