For those who have one or what one, I received my exhaust and found it had a hole in the pipe for an O2 sensor. I got the supplier, sporttour.com (good service and prices), to check into it. After some calls on their part, they found that Leo Vince was unaware that the US models did not use an O2 sensor. Sporttour arranged for a plug to be sent from Leo Vince. 12 days later a nice O2 plug arrived from Sporttour.