Headers & Roller rockers...HP
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I agree. I noticed some from the butt dyno as well. I can't comment on loss or gain in low end, but high end is when they shine. My truck had been sluggish as of late and when the JBA's went on, I got some of that lost power back. Also, the sound they made sounded 'richer', more pure tone. Hard to describe in words really. lol.
#12
I agree. I noticed some from the butt dyno as well. I can't comment on loss or gain in low end, but high end is when they shine. My truck had been sluggish as of late and when the JBA's went on, I got some of that lost power back. Also, the sound they made sounded 'richer', more pure tone. Hard to describe in words really. lol.
BraaaabrabrabrabraBraaaaaabrabrabrabra
With headers:
BRRAAAAAAbrabraBRAAAAAAAbrabraBRAAAAAA
See, headers help - they give you more capitals in your sounds!
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Headers definitely in my opinion change the tone of the exhaust. However not much on the power gains as others have been saying. However one disadvantage to headers is constantly having to make sure they are tight. Usually best to make sure the bolts are tight every oil change.
Cheaper than the high tech lock washers on the market and easier than safety wire.
#20
I installed my 4.0 JBA headers using the original factory Ranger studs/nuts and the factory Ranger stainless steel gaskets. I heat cycled the headers twice immediately after the install, retorqued them once and never had to touch them again.
I used factory studs and gaskets because I bought the headers used and they did not come with the JBA bolts and gaskets. They were harder to install using the studs but, looking back on it, I think that is the main reason that I did not have any problems with loosening or leakage. I believe that the SS gaskets helped too because they make a more rigid installation compared to the usual soft fiber gaskets.
I used factory studs and gaskets because I bought the headers used and they did not come with the JBA bolts and gaskets. They were harder to install using the studs but, looking back on it, I think that is the main reason that I did not have any problems with loosening or leakage. I believe that the SS gaskets helped too because they make a more rigid installation compared to the usual soft fiber gaskets.
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