Budget would help us steer you in the right direction, for example I had a limited budget but decided to get proper garrett gt3582r and tail 38mm waste gate as intercooler, bov, pipework could be upgraded at a later date but it would be a massive expense to buy a turbo twice or ruen a motor because of a crapy seized waste gate.Also arp hardware is not needed in 400bhp and less applications, some disagree but that's my experience .