Thunderbike exhaust

[Air Force Mark]

Hello all, with 1 year left on my warranty, I'm getting itchy for upgrades. I've been looking at the Thunderbike exhaust, 3-3. I like the look and Kevin in parts says you don't need to re-map, that it's plug and play. Anyone have these pipes or knowledge of these pipes? I've searched the threads and there is not a lot of opinion type information. The pipes remind me of the maddogs I've seen in photos.
If you have any comments, I would appreciate it.
Mark