The engine is making some irritating noise when I accelerate. I've do some research and it turns out the issue might be timing chain. My car is currently on 152000km and I've never replaced it. I've read some shocking stories about N20 engines failing because the timing chain broke and the engine got damaged(mostly with lower mileages than mine). So while luck is still on my side, I've decided to stop driving the car and fix it ASAP as part of a preventative maintenance. I bought the timing chain kit and oil pump chain, I would like to know how much it will cost me to get is replaced.