1.9 TDI 110 BHP TURBO CHARGER UPGRADES

[audi_rs2]

Hi.
I like to put a larger turbo from Audi 2.5 TDI 150 bhp
in to A4 1.9 110 bhp.
I think I need a different manifold. ????
I have the turbo from a 2.5 tdi 150 bhp and all i need is the changes needed???
Does anyone know where I can get a manifold to fit the biger turbo (2.5 150 bhp)???
May be other changes. part ,the manifold
any company in the UK or elsewhere?

please let me know guys
thanks