What made you choose this particular product?
I originally tried Royal Purple, however I had an extremely tough time changing gears and when I did get in geese I had more than a couple times it would slip back out. I read that the '15 WRX is somewhat picky with oil so I went with the Motul. I've had it in for about 3k miles with AMAZING results. It's smoother than stock, which is saying something since I have my short shift installed.
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