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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.

hi flow cat question

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Old Apr 25, 2005 | 11:29 AM
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snobrdgy14's Avatar
snobrdgy14
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hi flow cat question
i have helix up pipe and stromung turbo back with hi flow cat....would i gain more power if i got rid of my high flow cat?? is there enough back pressure?
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Old Apr 25, 2005 | 01:15 PM
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-j-'s Avatar
-j-
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From: Sactown
Car Info: 2006 Audi A3/2007 Civic Si
Probably another 5 hp. Just from what I've read.
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Old Apr 25, 2005 | 02:43 PM
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WRX2ndregime
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Car Info: 2005blackwrx5spd
in a turbo car, the turbo is the back pressure, so after the turbo the faster the path you make the exhaust gas escape, the more power you are going to make. 5hp is probably about right.
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