Non homologated with removable baffle. Less than 5 min to install (4 bolts). It's loud 105db so I put the db killer which brings it down to 103db I think. Ordered with the black pipe work. Have not ridden it yet. They emailed me last month and asked if I wanted Super Duke etched instead of Austin Racing which I said yes to but didn't happen. The orange cap is not as deep in colour as KTM orange but still happy with it.