Yea I found this video very interesting...bit of history of the Subaru boxer...and explains the benefits really well. (part about how it minimises vibration, I had no idea)

Mods may want to make this a sticky maybe for all the newbies.

Matto use vaseline, it will help you get sticky haha

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06 STi: 337hp @23psi on E85...
06 STi: 309hp @22psi on 98ron...