Just a heads up. For those whom are removing/bypassing the O2 sensors with the kit advertised the blanking off plugs supplied do not fit, or at least not the Mk11 sport. The thread size required is M12x1.25. I've yet to go for a long run but so far so good. Throttle response does seem improved?? I was having a few problems both in traffic or shutting down after a longish run with the engine fuelling getting confused and clattering to a stop. It would restart immediately and run fine. So I will see if this has been eliminated.