Is it normal for the exhaust to be glowing like that after riding the bike at higher rpms for a few minutes? Happens quite regularly to my bike, especially when riding in the city, never thought anything of it until a friend mentioned to me that exhausts usually don't do that. Is this a cause for concern?
Edit: forgot to add that this is (afaik) the catalytic converter, it doesn't really come across on my phone camera but it has a honey comb pattern to it.
