Well you can let people scare you with their hearsay stories that they've heard from other people or you can take it from someone with real experience. It's your choice. I'm not going to go back and forth with these guys. I've had cheap Summit headers on my car for 4 years. They work perfectly with no leaks and not one scratch on the bottom of them after hundreds of miles of Street driving and drag racing. Anyways make sure you make your decision based on facts and experience not anything else. I love my cheap Summit headers that work perfect and I'd beat people with Doug's & tti headers all the time. Don't let these guys cyber spend your money....