Ra to evo bpv upgrade

Discussion in 'Ralliart - Performance' started by injentech, Jul 3, 2010.

  1. injentech

    injentech Active Member

    question, why do people buy the stock evo x bpv and use it on their RA??? does it really make any kind of difference?
  2. Jogenmaru

    Jogenmaru Well-Known Member

    It releases back pressure a bit quicker is all. Not by much, but it is a good investment if you plan on upgrading your turbo. You are talking about the blow off valve/ back pressure valve?
  3. lancer2quick

    lancer2quick Well-Known Member

    Ha...there is an article in this month's Super Street about this. It talks about which upgrades are Evo and R/A interchangeable, and how to get to stges I, II, and III.
  4. bras_33

    bras_33 Well-Known Member

    +1 as stated earlier...
  5. injentech

    injentech Active Member

    nice!!!! thanks you guys just wanted to know. i just want to get a CAI first, but i really want to hear the spooling and the blow off heheeheh :)
  6. jRox

    jRox Well-Known Member

    You can achieve the "psh" effect with a CAI since it has an open element air filter. Turbo spool will also be very audible.

    The RA vs. X BOV are virtually the same. The RA BOV is plastic, whereas the X is metal/aluminum. You can also use an Evo 9 BOV (also metal/aluminum). Swapping out the Stock RA BOV with either the X or 9 will not provide the "psh" effect as both are still recirculated.