well it back fired through the air chamber, not the muffler (tailpipe). I didnt see any fire popping out, but a sudden burst of air i think it was that popped out like a shotgun from that air chamber. This also happened when I pushed the air flap down, NOT USING FUEL. I bet if I ran the test using fuel I'd blow to pieces, along with the car. LOL..
dj cee
ps: what in the world is KOEO???
