Hi clifftoff and welcome. I bought my race chip off another member but have removed it as Antara is going through a lot of regens. I am currently testing to see if it's is actually the race chip or the Ant itself. As I received the race chip 2nd hand, it may not be at the correct setting. Also due for service April.
With a 163 I would personally look at a Thorney remap as they take the 163 and 184 up to the same power which is good for the 163 as you've paid a grand less. Also Thorney claim to cover your warranty.
With a 163 I would personally look at a Thorney remap as they take the 163 and 184 up to the same power which is good for the 163 as you've paid a grand less. Also Thorney claim to cover your warranty.