hi all i need some help i have a std exhaust stage2 dna and pcv do i need to unplug the lamber sensor i have blocked ars all so i have a map which came with the dna filter thank you
keith ps my bike is a xt660z 2011

Welcome on board Keith.

No. Don't do it.

To make the most out of your PCV, you need to either fit Dynojet's O2 optimiser, or Kev's O2 controller (which can be bought through the forum). It is important to note that both of these devices are NOT lambda/O2 sensor eliminators. Unplugging or removing your O2 sensor, or eliminating it with one of those cheap little plug in resistor packs does not work.

Have a read of this thread about Kev's O2 controller. (The latest version is discussed from post #165 on page 17).

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