cuts the ignition so the cars still fueling, then sparks a plug in the exhaust - SOD THAT!!!
when it happens naturally it looks good, when the flamer kit does it you look a pleb, and it isnt exactly going to be ignored by the plod is it.
There was a fiesta at coombe a while agoi with it on, completely sh*te round the track but flaming up the strait... dont think many people were that amazed by it to be honest.