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Hello everyone, i will be tuning a stock EJ207 spec c V8 subaru sti. 

RON 98

VF37 turbo 

My question is does anyone here know the limit of the stock internals (max power and max torque) ? 

Thanks in Advance :)

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On 2/12/2019 at 8:13 PM, Stevieturbo said:

With a bad tuner, they can be destroyed at less than standard power.


With a good tuner they can easily support more than a VF37 will make.

you will have no problem maxing out the VF37 with the stock engine, it can take that turbo no problem with a proper tune.

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