Thanks Karlos, I am ideally looking to keep the RST manifold as it's matched to the downpipe so is less hassle to change it, Is there any other turbo's that fit this Manifold? I take it a T34 / T35 would fit? Would the T34 and T35 need to be uprated in anyway?

Would they be recommended over a stage 3 t3 or is the stage 3 the best opton?