I have a Mulfab fitted to my Plus 8 and it runs a lot cooler than the standard fitment.
Sifab also makes a good one and Williams market one, this could be a Sifab one I'm not totally sure about that though.
Go silicon hoses if you can.
Maybe worth giving these guys a call or email.
silicon Raphy on here (
atalante83) will know who to go to in your neck of the woods.