LAVIZZARI Exhaust - whats with the ECU?

Hi guys,

I fitted the LAVIZZARI Exhausts and wanted to know should I also change the mapping at the KTM dealer to the Akras Map???

It feels not completely right with the standart MAP with Lavizzari. I feel that it should have been pulling more in the midrange, because with the stock ones it did.

Also I unplugged the wires for the gear positioning sensor and now I have weard things:
It is pulling more at the end, but just from 0 rolling on there is a definate lag now and only after a pull. Also the idle rpm are up when in gear, when puting in Neutral it gets back low. Is that due to the wire remuval, is it normal for such sideffects?