I have heard the same thing.
But I launch my AWD hard all the time. The weakest part is the stock clutch. That's what you have to worry about. If he puts in a stronger clutch, like an ACT 2100 or 2600, the stress will be on other parts. But I've launched everywhere up to 5500 rpm without incident. IMO, they can take the abuse. And I'm running 16/17 psi on a big 16g turbo, with 211K.
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'91 AWD