2003 WRX stock turbo. I would like to get an eBay TMIC. I've heard great reviews about them, I've found a couple good deals & my stock TMIC is in really bad condition. I'm currently running a V7 scoop with the stock splitter. So, what kind of splitter would I need to acquire to run an larger TMIC? Or could I run the stock one? Also, do I have to purchase the y-pipe with the TMIC or can I use my stock one?