Stealers cost from 400-$600.
Smell most likely coming from 2 small rubber fuel line under turbo inlet.
the clamps from the fuel line are not tight. either tighten them or buy new ones.
i did mine myself, if decide to do it. buy a after market turbo inlet (Samco Perrin etc...) coz the nipples from the oem inlet will break-off.
DIY & save yourself some money.
Do a search on how to remove turbo inlet, alot in this forum.
Take your time if you decide to do it yourself
& mark everything that you disconnect.
BTW..i did not remove my intake manifold.
GL Hopia