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Well I just got done installing my LS6 intake manifold, took less time than changing my plugs the other night! Went for a quick drive and the car does feel noticeably stronger. I'm getting it tuned tomorrow, my car has a Vararam, Kooks 1-3/4" long tubes, no cats, modded Ti exhaust, and the LS6 manifold I just installed. What numbers do you think I'll put down after getting it tuned tomorrow?
Peak, about 5/5 more than u made, although dyno conditions may be different than before, selling point to a ls6 intake is the power curve is better and holds power longer, I gained about 1-1.5 in 1/4 mile on mine