So I just purchased a COBB AP and currenty I have a high flow drop in filter with a straight pipe catback, I'm sure that I could run without problems a stage 1. The thing is that I saw on the COBB page that to run a stage 2 you will need their intercooler and a custom CAI.
Looking for the cp-e Exhale kit with the HKS blow off valve. I'd prefer the black piping over the red, but I'll take whatever is available. It's a pricey kit, so if anyone is selling a used kit, I'm interested. I just can't find another BOV that sounds like the HKS. I love that sound. Let me know!