mef

I have the above fuel pump in my rally car, it seems to be the one used by Prodrive in GpN and Recce cars. I had to replace it as it went faulty, got one easily enough, the thing is, whats it off? I cant find it listed anywhere, can anyone help? I have found it on www.fuelsystem.co.uk web site and it shows the flow rate as 3ltr/min (180ltr/hr) but no other info. I think it might be off a big Audi or Porsche, its an external to tank pump.

Thanks,

Martin