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.

Exhaust Back-fire

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Old Oct 11, 2005 | 02:05 PM
  #1  
forcefed's Avatar
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Exhaust Back-fire

Will an aftermaket BOV cause an exhaust backfire with a cat-less up-pipe, TXS stealth back exhaust, and stock muffler?
Old Oct 11, 2005 | 03:50 PM
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Car Info: 06 STI WRB/Gold
I think if its 100% atmospheric it will, what knid do you have?
Old Oct 12, 2005 | 12:45 AM
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You can get a backfire without it. The aftermarket BOV will probably make it happen more often.
Old Oct 12, 2005 | 02:15 AM
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if u are running full catless, then yes... if their are cats... then mostlikely not
Old Oct 12, 2005 | 10:59 AM
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u probably won't hear a thing with the stock muffler on though
Old Oct 12, 2005 | 11:09 AM
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Originally Posted by TurnWRX
u probably won't hear a thing with the stock muffler on though
Thats what I was thinking...
Old Oct 12, 2005 | 11:46 AM
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you wont hear anything with a stock muffler . . . when i ran catless [w/bov] and stock catback i didnt hear a thing
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