Quote:
Originally Posted by Summerwolf
Read the grimmspeed development thread. If that doesn't help, its probably not worth researching anymore.
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I have and it's great that they provide all the dyno testing and what went into making it. But the design is pretty much just like the injen intake. Aside from having a oiled filter compared to the dry one injen uses. Still what is the definitive reason that makes grimspeed better than the rest?