I believe it stemmed from a manifold or downpipe they made, that exhaust gas leaked straight through the welds on. They then wouldn't honour a warranty or repair or any sort of solution for a member.... I think.... Id need to find the thread. Edit, found it. http://www.ukstarletowners.com/topic/83569-zisco-performance-negative-feedback/ However, they are still trading, you can catch them on FB.