I know know he changed his packing materials due to my exact complaint about blow out issues. Its just Bristol Cores stainless matting wrapped around the core then a high temp fiberglass matting. Im glad hes warrentying his new pipes for life.......I just wish he would do the same for his older design. Its not really fair to 1st gen owners that his materials wouldnt hold up. I know the new design is fully welded and it was done to reduce build cost and time considerably, but yet his price has stayed the same or gone up. Ive talked with Kevin in depth about his mufflers and Know why he has done the things he has as far as manufacturing. Its just a shame that in all hes claims to be saving with his new design that the savings arnt passed along to the consumer.