Yes, DC is only a 4-1. Weapon-r is a true 4-2-1 tho. I just put them on this week and love them! 
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Next Mods: 9.5psi pulley(waiting to install), Forge 007 BPV, Boost, Wideband, and oil Pres. gauges, Stage 2 Cams, AEM F/IC and tune
300whp here I come
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