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Old 03-07-2020, 11:56 PM   #3
humfrz
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Join Date: May 2013
Drives: 2013 FR-S, white, MT
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Quote:
Originally Posted by BleachBlanket View Post
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?
Welcome to our happy group, there, BleachBlanket -

You wouldn't notice the difference, as long as you stay out of the timing traps at the drag strips and stay off the dynos -




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