Originally Posted by ProfessWRX
You'll run a higher injector duty cycle on a shelf tune at 290 than a custom tune at 300. Many people have made 300 on a stock pump. So unless yours is failing you're fine.
You should be more concerned about the torque killing your trans than the hp. Keep the torque lower and you'll be safer.
Never heard of an actual problem with a waste gate crack.
Good to know thanks. Looks like ill look for a vf34 for a good price, vf43 or if it comes down to it a vf39