I've ran Dynatech headers pretty much forever. Never an issue. However, I've recently noticed my current headers are cracking right at the flange on the inside of the tubes. They can be fixed, but it's kinda annoying to see this. They are heavy though, and I'm considering going to a set of stainless headers that are somewhat lighter. Any suggestions on this? Performance is important, but so is durability.

Looking for suggestions....

If you are looking for new stainless I've had very good luck with stainless works. The are double walled at the flange. They also offer the upturned bull horn collectors (I don't have them but a friend does) they keep the car amazingly clean during the burnout.