APR stage 3 turbo upgrade for A4.. do i need to rebuild my motor?
#14
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then why not. It will only help. Build up the motor, go bigger, whatever you like. Forged internals are always nice.
#17
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have you ever run it at the track? 340 hp with 104 octane? wow!!! any problems with your motor??? sounds like you have one hell of a car man.. keep it below 120 mph and you will be fine
#18
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likely the car had issues before the kit went in .. but it did either grab a bearing or a bent rod finally let go.