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Old 02-04-2012, 04:57 PM   #139
sojopo
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Join Date: Feb 2012
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Location: Royal Oak, MI
What I Drive: 2004 Black ZX5

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Magnaflow Low End Torque Loss for 2.3L

While looking for a cat back for the 2004 2.3L Duratec, I ran across this dyno plot for the magnaflow on the 2.3L.

http://www.magnaflow.com/02product/dynos/15682.jpg

Looks to me like they lost some significant tuning under 4000. Has anyone run this system? Can you notice the loss.

I have an automatic, which, yes, I know, I'd rather have a manual, but which would definitely suffer from the loss at the low end.

Any thoughts? A better cat back for the 2.3L? Thanks.
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