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Engine Management and ECU Remapping This section is to discuss the various aspects of engine management modification for your Subaru.

2002 WRX Cat Bypass

Old 20 January 2019, 09:04 PM
  #1  
EddieMunster
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Default 2002 WRX Cat Bypass

Hi

Am I correct in thinking there are 2 cats on this, and therefore for a cat bypass I'd need 2 separate sections?

Regards
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Old 21 January 2019, 09:03 AM
  #2  
stockcar
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some companies supply as a 1pce complete unit to replace both at the same time.........
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Old 21 January 2019, 11:53 AM
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bludgod
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you've got 3, there's one in the up pipe as well before the turbo, then 2 in the downpipe section:

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