Quote:
Originally Posted by Supermassive
Headers are proving to be pretty much unnecessary if you are running N/A at the moment. There have been threads and threads and threads showing that headers dont gain much if any power. It's purely cosmetic as all it will actually do is change your exhaust sound and look shiny when it's on a lift. Once there are cam kits headers will likely have more effect but as for now, the only good advice is if you really want it and can afford it, buy it. But if there are any other upgrades you would like, get those first.
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Um, the Nameless prototype header that Tainen dyno'd with yielded 11-12 HP with the headerback system. Borla's produced more power as well. The only one that I recalled horrible was the Agency Power one.
JDL is working on a quality header as well. Many of the major companies still haven't released their final designs yet. It's best to wait unless you want to jump the gun and go with Borla's UEL or EL.
I'm personally waiting for a Nameless coated header whether they offer EL or UEL. It will go well with the Nameless headerback system.