I got the Doug Thorley headers/Y pipe, and performance wasn't much, but the
combination of headers AND an opened up intake is AMAZING....but I think you
really need to do both.
Later,
Robert
Jason&Sarah wrote:
> I have the JBA headers on my truck. I have noticed no difference in MPG and
> felt no performance gains.
>
> Jason
>
> >you more power? which are made better? does anybody have dyno results? i
> gotta
> >decide between the two.if more, how much more? thanx for any help.
> >
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