Truck manifold measurement question...
12-19-2008, 03:57 PM
#1
FormerVendor
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Truck manifold measurement question... I read the sticky on the truck manifolds, plus many other threads. I just got my truck manifolds in today and I remember reading that they are 2.5" collectors.. I measured them out and one side is 2.5" the other side only measures out to ~2.125" Is this the norm?
12-19-2008, 06:51 PM
#2
Some guys use 2.25" pipes and are perfectly fine. 2.5" is just "the norm" but stock manifolds have a weird measurement and in some spots they are not exactly 2.5" or even 2.25". It wont matter unless you are worried about not making over 1000hp...(which has already been done with those "wimpy" truck manifolds 
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