Hey, never had heard that about Vararam cold air packages? I own a 1998 Corvette with an S&D LS2 based 402cid, with AFR 225 Pro Strip heads, long tubes, 3" X-pipe, B&Bs, Cam Motion cam 592 intake and 600exhaust lift, I also have a Vararam infront of the Magnuson 112. The car pulls hard (10:52-10:87 at 131-137mph) I do not know if you can feed an engine like mine with only 557cfms? Maybe it is the Magnuson? Don't know? Is your fit good? no major leaks? Have you contacted Vararam?