I am sure this has been beat to death, but my question is not about the HP gain but what can work without any issues. Bellangers have been recommended by more than a few people, but I read that they cannot be wrapped to minimize the potential heat issues underneath the hood.

So I contacted Bellanger and they confirmed that they do not recommend wrapping their headers as it will cause issues due to the heat/cool cycles if the headers are wrapped. So is there a header (and exhaust for that matter) that can be wrapped and not have to worry about warping or any other potential problems?