I don't recomend getting an internal wastegated turbo if you PLAN on using an external... even when they're welded shut the tunnel that leads to them acts like a reversion chamber and F's up the flow of the exhaust gases...
Poor flow is the enemy of turbo efficiency.
It's certainly not the biggest deal in the world... but if you PLAN on using an external I'd get a non-wastegated turbo.
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I am an A$$hole... take anything I say to heart at YOUR OWN RISK...
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