Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

I want a TBE without boost creep?????

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Old Aug 17, 2004 | 02:43 PM
  #2  
silver satin's Avatar
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Not true you do not need to P&P your turbo..My friend has had about three or four different exhaust on his STI with a PDE DP and had no boost creep. He now has the Cobb DP and the Blitz touring cat back and as far as I know he still is not getting any boost creep. From what I've read it all has to do with the opening where the DP mates with the turbo some of the bell mouth DP cause boost creep and others do not.
Old Aug 17, 2004 | 03:04 PM
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You should be fine with a new TBE.
Old Aug 17, 2004 | 07:22 PM
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Originally Posted by silver satin
Not true you do not need to P&P your turbo..My friend has had about three or four different exhaust on his STI with a PDE DP and had no boost creep. He now has the Cobb DP and the Blitz touring cat back and as far as I know he still is not getting any boost creep. From what I've read it all has to do with the opening where the DP mates with the turbo some of the bell mouth DP cause boost creep and others do not.
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He's talking about me.....I've had a PDE down-pipe w/ 3 different cat-backs and have had no boost creep.

I now have the Cobb dp w/ Blitz Nur spec touring cat back and have no boost creep.

Go with the PDE down-pipe and any cat-back you want and you'll be just fine.
Old Aug 19, 2004 | 10:29 AM
  #6  
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Seems the difference between the ones that boost creep and the ones that don't are the housings on the turbo. If you have 17 versus the 18 you will boost creep. You can read the housing on the side of the turbo.
Old Aug 25, 2004 | 03:57 PM
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From what I have gathered keeping at least one cat (or having a high flow cat) helps against boost creep..... but again you may be one of those unlucky ones .....
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