Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

What are performance gains with a BOV?

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Old 01-06-2003 | 09:20 PM
  #2  
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There are 3 reasons one would change the BOV:

1. Stock on is leaking (broken or too much boost)
2. Style/Sound
3. You have a FMIC

Adding BOV will not add performance. It might, however, bring your performance back, in case your stocker is leaking due to being faulty or if you are running a huge turbo and running lots of boost.

- Alex
Old 01-07-2003 | 12:05 AM
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also if you want to up the boost.
Old 01-07-2003 | 12:40 AM
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Originally posted by InfamousDX
also if you want to up the boost.
how much boost are you talking about??? The stock one will hold just fine with any boost you'd run on the stock turbo, ... even with most bolt on turbos.
Old 01-07-2003 | 10:16 AM
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when you get one, get a dual vent so that it does not throw off the ECU by sending it all out 100% to the atmosphere.
I got mine b/c of the sound pretty much it doesnt really affect performance at all.

-Zoeb
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