I just swapped the cobra intake for a track heat intake, 1" spacer, 30# injectors, and a new pro-m 75mm MAF. I haven't really driven it too much but I know I still need to work out some of the tuning bugs but it seems slower now. I haven't really gone past 4500 rpms yet though, is this going to be one of those high rpm only intakes. I was expecting it to be a high rpm intake but I really didn't think it would hurt my low rpm power/torque too much. Do you think it is just a tuning problem or is that just the way this intake is? Any suggestions would be appreciated, thanks.