I'm looking for the same. I'm form italy, and there are not a lot of products. I've found a man that is already preparing header for racing car and also for ferrari e lamborghini. I've changed in his work shop a catalyst. I was speaking with him and he told me that he cam made a full line "headers, catalyst (sport type) and exhaust for around the same price.. But nothing is confirmed.... When I'll back home from Abu Dhabi in february I've to do some job with BMC and I would like to go deeper about header with that man...