On my duramax I was talking about it made about 12 psi of boost on the stock tune. On the 250 hp extra tune it made 32 psi. I only blew it up doing a 6 gear burnout because it did over spool. I'd be surprised if the added fuel for 60 hp would over spool it but i could be wrong.I hope that's before the oil cooler install.
Do you know if the PPEI tune over-speeds the turbo to make those power numbers? I've read that's easily done, and will shorten the life of the turbo.
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