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Old 03-07-2020, 09:48 PM   #1
BleachBlanket
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Join Date: Mar 2019
Drives: Subaru BRZ 2014
Location: Baltimore, MD
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Catted vs. catless?

Hello peeps,
I’m running a catless uel header. Unfortunately, to pass emissions (every 2 years) I have to swap back to stock catted header. Not a difficult task when I have the time and the weather’s ok- no garage.
Anyways, if I got a catted uel header, what kind of gains will I loose?
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