Message: What headers work the best on the 4.7, Borla, JBA, JBA ceramic coating, or is there some other brand? Which ones give the most power gain and how hard are they to install?
Message: Word is that only 2 or 3 HP are gained from the headers. Apparently $'s for HP that's one of the worse mod's available. Can anyone confirm this??
Message: I got Borla headers. I would save the money. For $400 I would much rather flash the PCM. But then you have to run premium and they don't recommend towing with it.
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Subject: 4.7 & Headers
RE: 4.7 & Headers