All I gotta say, is you get what you pay for. No name BOV that is a knock off of the HKS SSQV. Never heard of "JDM" T3/T4, though it's a popular and appropriate size for our motors. No engine management included, so add in another $800+ for that. The description says it's the adjustable BOV......but it's not. My first impression is a kit like that could be a big headache. I'd honestly get one from a company that's proven and specific to their applcations, like HiBoost. HiBoost probably doesn't have a great reputation right now with this club because of all the trouble MonsterJ is going through, but they are known to have incredibly slow customer service. I had issues contacting them in regards to parts, turn around time was way too high. With turbo kits, you can't cheap out, you need to get quality parts, or you will pay for it in the end (repairs, replacement parts, time, labor, etc).
How much boost are you planning on running? Auto.....5 speed? Stock motor......plan to build a motor?? Lots of variables you need to think about. I bet a kit like that ebay kit wouldn't survive 5 psi in our climate. I great way to get a P5 into forced induction is starting with an MSP kit. There are always people selling complete MSP setups on the US board
www.msprotege.com. I always browse the for sale forums and usually see 3-4 separate MSP setups being sold. It's all bolt on, and stock boost is 6psi, should put you around 160 at the wheels. Supporting mods are obviously going to change that (exhaust, boost controller, intercooler, fuel management, etc).
We got a meet this Sunday at SFU at 2pm, come by if you wanna see a few boosted Protege/Protege 5s. Off the top of my head, probably have 3 aftermarket kits and an MSP at the meet.