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Old 12-11-2012, 10:12 AM   #3
Courtesy Flush
Senior Member
 
Join Date: Aug 2012
Location: Keller, TX
Posts: 613
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I ve run both setups but i dont have back to back dynos to back up specific gains. I can only tell you my header car picked up more low end and mid-range power over an o/r setup.
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