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.

dp advice

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Old Feb 4, 2007 | 10:41 PM
  #1  
flat489's Avatar
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From: Saratoga
Car Info: '11 STI
dp advice

So right now i have a greddy evo2 cat back exhaust with a decatted dp(dont know the brand it came with the car) and a stock midpipe. I want to go catless but im not sure if i should just get a midpipe, something like an aps, or go for a bellmouth dp. If i went with the bellmouth, i think i may go with the tsudo ebay one. any advice on which one would be better? thanks
Old Feb 4, 2007 | 11:10 PM
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i guess i was wrong about having my stock midpipe but i was told that i still have my 3rd cat on my car. so is the only way to get rid of it is to get a new dp?
Old Feb 4, 2007 | 11:35 PM
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Your car has 3 cats total. One on the up-pipe two on the downpipe. If you get a catless downpipe you will eliminate 2 of the cats automatically unless you get shorty downpipe which only takes out one. I assume you want to run completely catless and taken the fact that you already have a catback I would suggest getting a catless up-pipe and your choice of downpipe (invidia,titek, helix, perrin, aps, etc).

Good Luck
Old Feb 4, 2007 | 11:46 PM
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yea i got the uppipe already but ill start looking at non shorty dps im not sure y the previous owner went for a shorty dp
Old Feb 10, 2007 | 11:04 PM
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Thumbs up

The Cobb downpipe would be my choice.
Old Feb 11, 2007 | 04:43 PM
  #6  
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Car Info: 02 PSM WRX
I went with a TXS. Pic's can be found here https://www.i-club.com/forums/engine-power-ej20t-pre-2006-wrx-jdm-60/best-downpipe-use-152832/
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