Is there any advantage to using studs on the turbo, other than it probably makes it slightly more convenient to thread on a nut in a couple of the hard to reach places?
I automatically replace any turbo studs with bolts. When used without washers, they never came loose. Plus they are a lot less likely to snap, which is a really common and unpleasant problem on T2 turbos and manifolds.
Dealing with the locking tabs or any type of locking contraption on a bottom-mounted manifold is a huge pain. I am having an adapter plate made to have the stock manifold flipped upside down and use it as a top-mount, only due to how annoying it is to work with a bottom-mounted turbo. Though I am still undecided about using it, because on the other hand the bottom-mount setup does look much cleaner in the engine bay and makes for a lower center of gravity.
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