Thread: ARH headers 1 3/4" 0r 1 7/8"
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Old 01-02-2010, 04:51 PM   #4
wbdinger

 
Drives: NSMNJW=2010 CGM 2SS/RS LS3
Join Date: Dec 2009
Location: Exshaw Alberta Canada
Posts: 1,215
the 17/8 will give you more upper hp and the 13/4 will give you lower rpm tq
from what I under stand
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