I just installed the JBA's from EE. They sell these and BBK'S. BBK's are not smog legal. Best thing to do is get a hold of John Vanek at EE. He is a ton of help, a great sponsor to the board, and really like to hear form us, and what we are doing to our trucks. I needed a little convincing that it was time for headers and he coached me through it. Him and I agreed that I would be safe getting the headers now. Remember though that headers are a part of a much larger puzzel. With everything in place gains a significant. Alone the gains will be minimal. I have two more things to do and I'll be finished. Injectors and MAS. and my puzzel will be complete. How 'bout yours?