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- 09 mazdaspeed 3
got it this morning its the RPMC inlet an i installed it this afternoon, the install was a complete pain in the ass... but it was worth it. thanks Ken @ PROTEGE GARAGE for the good deal (nana) first impressions- no difference in first. 2nd an 3rd big difference though. im kind of bummed how quiet the BOV is now tho. i have an HKS run on VTA and it is soooo quiet now. intake is loud as F***! matched with the injen CAI sounds like a complete monster. overall. i'd really suggest forkin the cash over for one. the gains are pretty damn noticeable. but if you like the sound of your BOV, then i wouldnt do it. haha.