Hey guys i have a 3in gbodyparts downpipe on its way. I just found out that i have cracks in both of my headers. So i would like to replace them with a nice stainless set that would also give me some performance gain. Which set should i go with? I was looking at the one on full throttle speed and there is a set on ebay from a GN vendor. Both are around 600, might be the same ones not sure. Also i was told by someone that getting aftermarket headers would increase turbo lag for whatever reason, if somebody can set me straight on that id appreciate it. Thanks