Turbo
Manifold
Downpipe
Intercooler Setup
Internal/External W/G ?
Oil And Water Lines, Bolts Clips, Silicone Fittings
Sure you can use standard exhaust
Money to get the AFR's Checked possible remap ?
List is endless depending on what you want those are the basics, but you need to forge the engine to get the most out of the turbo.