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Less powerful after changing exhaust

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Old 04 September 2014, 07:40 PM
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wrxjay03
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Default Less powerful after changing exhaust

Hi all,

Recently changed my Prodrive exhaust and centre section on my RB320 and replaced it with a Cobra non resonated system, 3" bore. Having changed it I'm not sure whether it is just my imagination but I feel the car doesn't pull so well through the gears. It just doesn't feel as quick but not sure whether it just me.

Just wondering if anyone else has experienced this?

Thanks
Old 04 September 2014, 07:41 PM
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bustaMOVEs
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Mapped?
Old 04 September 2014, 07:49 PM
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wrxjay03
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No totally standard...
Old 04 September 2014, 07:56 PM
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I think it will be the 3" bore, car probably needs a map tweak to compensate
Old 04 September 2014, 08:00 PM
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EssexJamie
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I'd say it needs a map going from 2.5" to 3"
Old 04 September 2014, 08:01 PM
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stonejedi
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Is it a turbo back exhaust No cats?,if so It Definitely Needs a map mate.SJ.

Last edited by stonejedi; 04 September 2014 at 08:02 PM.
Old 04 September 2014, 08:05 PM
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wrxjay03
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Hmm, so it would lose power then going from 2.5 to 3? How much power we talking?

Also, what map would I need?

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Old 04 September 2014, 08:10 PM
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EcuTek remap would be a good choice imo
Old 04 September 2014, 08:24 PM
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XDevil666
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Yup will need a map, less back pressure I believe

I just switched from equal back to standard headers, made a hell of a difference on my spool time and that's before I have had a map tweak
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