Hi ozhonda people. I bought a set of PLM headers for my b series from a shop ( name held) in Sydney nearly 6mths ago. Since that time I've driven the car about 7- 10 times. The last 4 weeks i've taken the headers to the exhaust shop to get repaired. As they keep cracking around the pipe & flange. I'm over spending $100 bucks almost every 2 weeks to get these things fixed. The exhaust shop said they can make a set of mild steel headers for $900 - $ 1100 same design as i've got now which are PLM headers 4-1. Just wondering if any of you guys on this forum have bought this product & has had the same happen. The exhaust shop said its becoz they are stainless steel. And stainless steel is very weak material to make a exhaust headers. Hope some one can help me as im confused about what to do.