yes a powerpipe replaces the stock air intake setup. most kits come with a bypass valve (vented back into the intake tube) unless your piecing one together then you will have to buy one unless you get some deal where it comes with something you buy. you will need a bov/ bypass valve with a centri or turbo to avoid compressor surge. cx racing makes good affordable intercoolers theres lots of guys in here running them and the procharger 2 or 3 core intercooler is good also but is a little more expensiveI've been reading this thread since it started and it has me excited to get my supercharging on! I do have a few questions and I hope you guys can help. First question is does a powerpipe replace a air intake kit? I don't want to buy both if i do not need to. I also didn't see a blow off valve or bypass valve, (hope one of those is right) listed in that thread. Are they necessary and if so what do you recommend. Lastly, for now, what inter-cooler do you guys recommend? Thank you for any help you can offer.