First off I know I’ll lose some performance but, I want to give this a try. If I were to go back to the OEM exhaust removing the Two Brothers Tarmac would it work ? Could I unplug the O2 sensor from the auto tune module, turn off the auto tune and run the bike on the current map the PCV has in it ? It would have no O2 sensor connected to the PCV / ECU at all. The bike would just be fueled by a map the auto tune had generated with the Two Brothers installed. Would this even work ? I ask because I’m just sick of the D*** noisy exhaust.