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Old 07-25-2013, 01:02 PM   #2
xxscaxx
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no tune needed, and you will not get a CEL. There is no o2 sensor in the front pipe, both are in the header which is why people will throw a CEL when the cat is removed from an aftermarket one.

A tune might help a bit with power but I believe there is minimal gain. You will be fine.
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