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change headers for equal length is remap needed

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Old 22 May 2016 | 12:14 PM
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Default change headers for equal length is remap needed
Hi I have 2008 sti hatch with loads of mods including a full decat and MD321t turbo running 466bhp. I want to change the headers to an equal length 4:2:1 setup, will I need a remap?
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Old 22 May 2016 | 12:15 PM
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Originally Posted by dean.mac
Hi I have 2008 sti hatch with loads of mods including a full decat and MD321t turbo running 466bhp. I want to change the headers to an equal length 4:2:1 setup, will I need a remap?
Yes,
May spool earlier and run lean at points.
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Old 24 May 2016 | 05:12 PM
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Just phoned my local mapper and he said it would be fine to fit this and drive it, but i would not get the most from it unless i had it mapped
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Old 24 May 2016 | 05:39 PM
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Who is the mapper that said that?
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Old 24 May 2016 | 06:13 PM
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alan jeffery
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