I have a whole list of guys that I want to read this post. I have been preaching this same idea to local "gear heads" for years with few people actually listening to me. I got fed up with cheap headers about ten years ago and started ripping them off of all the old junk I had. Like everyone else has said, you can spend a grand and get something that won't leak, but on a street/trail truck it just isn't worth it in my opinion. Now, when I finally build my 12 second street legal swb truck...that might be a different story.