Ok here's the deal the I got a Mac o/r h-pipe from a guy locally for free and now I'm wanting to do headers. But I want to know if I should go with BBK's new tuned length shorty headers since I have the h-pipe already or should I go with the Mac long tube set up. Now I know long tubes will give me more power but how much more power is the question? I mean is it worth it going thru all the trouble of selling the h-pipe and buying a whole new set up? The BBk headers are tuned length so I think they will give alot more power than a regular set of aftermartket headers. I guess my main question is how much power will I gain with the shorty headers and o/r hpipe vs the MAc long tube set up.