She likes my vx, but I think she likes the "smooth" ride of her toyota to much to change. Everytime we go on a trip she always tries to steal my keys and jump in the driver seat

I think I finally decided not to change my tip or make any modification to the PV2. After hearing the PV1, PV2 with smaller tip and finally mine with stock tip, I think I'd rather just get used to the interior noise and get the full external effect then loose it.