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kentrik
 Post subject: Re: Do i need a tune for Bolt on parts?
PostPosted: Thu Oct 15, 2009 9:02 am 
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Double post FTL.

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abacall
 Post subject: Re: Do i need a tune for Bolt on parts?
PostPosted: Thu Oct 15, 2009 12:22 pm 
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Joined: Mon Apr 27, 2009 9:28 am
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Location: SLC
Drives:: 2004 Forester VF39 XT-i
Bones wrote:
^^^^turbo spools faster and causes problems.. also the o2 sensor has to be at a certain temp when it gets hot the ecu goes nuts and thinks the cats are bad and it is running bad and throws codes..


I don't buy into this.... That means a UP alone (causing faster spool) would require a tune, which it doesn't. Case in point, 04/05 Foresters have a precat, 06+ do not. No changes to programming were made due to the cat's elimination. Not to mention that the codes shot by the o2 sensors high pre-cat temps are already set to be ignored, or a mechanical fix should have already been in place...
To someone with existing EM, especially using Cobb OTS maps, the replacement of the UP with a non-catted unit does not require a re-tune.

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DemiSlayer
 Post subject: Re: Do i need a tune for Bolt on parts?
PostPosted: Mon Oct 26, 2009 12:53 am 
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Joined: Wed Oct 07, 2009 3:12 pm
Posts: 30
Drives:: Subaurs
I would have to agree with a catless up-pipe upgrade for the 02-03 wrx would not require a retune. how ever a catless down-pipe would or atleast a base map loaded.
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