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Decat Downpipe on Newage

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Old 26 November 2005 | 07:35 PM
  #1  
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gazbrook
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From: Leeds
Default Decat Downpipe on Newage

I have tried searching the dozens of threads already but can't find the right info.

I have just bought a Decat Downpipe for my 05 wrx and it has only one hole for the lambda/02 sensor. Is this right, because I thought there should be two holes needed. If this is the case what problems will it cause?

Cheers

Gaz
Old 26 November 2005 | 07:42 PM
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From: Deepest Darkest Dorset!!
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99% sure you only need the one......
Old 29 November 2005 | 11:01 PM
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I fitted a tubular manifold to my bugeye thus removing the pre-cat which is in the up-pipe to the turbo. Result 'Check Engine Light' playing hockey kockey, ie on/off. whether fitteing a de-cat downpipe will do the same not sure but I know scoobysport did do a box to trick the rear lambda sensor so that the ECU thought all ok. Maybe worth fitting and having a word with local MOT garage to see if you can put it on the gas analyser to see if it still passes the MOT.
Old 30 November 2005 | 05:57 PM
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sounds like you have one of those downpipe/center decat pipes as one piece. I changed the second cat (the one with the sensor in) and it made the performance worse on the car. I think the Downpipe with the open neck improves it but you might recieve the engine light as you are removing all the CAT's after the turbo.
Old 30 November 2005 | 07:02 PM
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If you de-cat your wrx i would get a re-map also .It would be agood idea to change the up pipe while you are at it .Scoobyclinic did my 03 wrx good price and 282bhp. My de-cat pipe as only one censor.
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