I had trouble with them with a standard T3 for my Series 1, primed it all properly, got the required oil pressure etc, started the engine and oil was pissing out from underneath it! phoned them up and they said send it back, sent it back and they never even phoned me to say sorry our fault etc, just sent another back in the post 3 days later, yes I was happy they replaced it but never apologised for there fuck up!
Spax