John,
Looking to get some info on the below from BUB after reading your thread with Dennis Manning at your shop and the O2 sensor was in a real tight spot on the front pipe and a replacement was in the works.
I do not know where Zipper's got that info. But I just spoke with our Sales Mngr. and there is nothing like that going to be offered. There was a issue with the rear pipe cracking that we would replace. That may be what they're mistaken with. Our BUB exhaust are made to fit with the OEM bike. When you put the Bosch or Zippers 02 sensors on your bike that is not a OEM device. So I would tell Zipper's that is false. I'm sorry but that is the Companies stand on this issue. The problem is if they made a Mod. for every different aftermarket part, they would be in a steady redesign mode, is what they tell me. Hope this clears up this issue. Thanks, Jim
Jim Rego
Bub Tech Support
1-800-934-9739
7:30am-4:00pm pst
Thanks for the scoop.
TimBone