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They are pricy yes, i doubt theyre worth that much,even if they do give a slight gain,which i doubt an a na engine. My engine is in good nick. I have some mods done,like remap, plenum, under drive pulley, sports manifold,cats and exhaust, widened throttle body and bigger intake hose and air filter. So i was interested in adding a few more hp, but not if its hardly going to make any difference.
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