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 down pipe is best for the Greddy cat back evo system?

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Old 12-24-2002, 11:24 PM
  #2  
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Car Info: Boosted Geo Prizm
PDE is good but there are a few others that take the design to the fullest. Look for a FULL bellmouth downpipe or one with a divorced wastegate housing.

Some names to throw out at you are Helix, Perrin, Scooby Sport, Invidia(from vividracing) and more... If your on a budget the HKS is good as it removes all the catalytics, but it is not a bellmouth design and you could suffer a performance hit when you swap to a larger higher flowing turbo. You could also get a TurboXS one and have a mufler shop fix it to mate up to your current system.
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Old 12-25-2002, 04:03 PM
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If you want to retain a cat then use the bosal. That's what I will be using with my Greddy...
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