I installed a STI intercooler awhile back in my 04, ofcourse to make it "work" requires the STi splitter/seal and scoop. My wife wasn't tickled w/ the larger scoop, so I got to thinking (dangerous I know ). Going from memory the v7 hoop scoop seemed to be about the same size as the "new" WRX hood scoops- what if I used a v7 STi splitter under the stock WRX scoop- hmm- would it fit? Like a lot of things you don't know unless you try- so I ordered a a v7 STi splitter (rallispec). Well all the fasteners line up identically so it will "fit", but will fit properly?
I was suprised to find out that the WRX splitter is actually taller than the "old" STi splitter, by ~ 10mm.
Pics of v7 (left) v8 right from the side.
Pic from the top (you can see the v7 STi splitter comes further to the right- this is to accomodate the wider intercooler.
If my WRX splitter looks different than yours it's because I previously installed a "splitter" portion to use w/ the oe intercooler.