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Old 05-16-2013, 10:58 PM   #4
COTW 9/16/13
kjkjr27's Avatar
Drives: 2011 2LT/RS Camaro IOM
Join Date: Jan 2012
Location: Syracuse
Posts: 10,097
Basically different mods show gains in different parts of the RPM range. So some may show gains within lets say 3000-5000RPM but at 6000 the rwhp # may be the same as it was prior to adding the mods. It also depends on what mods you do, some like an underdrive pulley or 1-piece drive shaft won't actually add hp it just reduces the amount lost that is being produced by the engine.
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