How far has anyone pushed a stock turbo too? I'm hoping to get close to 500? Maybe like full bolt ons, cams, e85, tune? Or close enough to 500. And whats a safe boost level for the stock turbos before they blow? I'm the 3rd owner of my X and the previous owner said he tuned my car on 27 pounds. It seems a bit high to me, not so sure though. My only mods are a tbe, mbc, and a tune.