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      01-18-2022, 09:32 PM   #1
philmeister4
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Catless Resonated DP Install Question

I got a set of AR Design Catless Resonated DPs installed today on an otherwise entirely stock car that I purchased new.

My car hasn’t thrown a CEL yet and I’m shocked. Only drove ~15 miles after picking it up today but snuck a 0-100 run in. Thought that would trip it. On my E92, I threw a CEL within 4 miles of installing a HFC x-pipe.

Is that normal? I am shocked that I completely removed the primaries, have not flashed a tune to mitigate the CEL and don’t have one.

I still need a buddy to rev for me while I stand outside the car but I can’t say that I notice a discernible difference in the car, even in Sport + with the windows down.

Edit: the shop left my exhaust valve actuators unplugged, solving my lackluster sonic experience.
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Last edited by philmeister4; 01-18-2022 at 09:49 PM..
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      01-19-2022, 08:36 AM   #2
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the CEL turn on 50-100 miles after the install
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      01-19-2022, 08:45 AM   #3
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CEL coming in a week.

(On your other post, same topic)
Since the factory exhaust provides a straight through path (its a bypass tube inside of the big box) you already have the setup, just run valves open in sport and then unplug them.

Other rear sections just modify the tone because of the size of the box or the metal it's made of. With valves open most sound similar because of the bypass.
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      01-19-2022, 09:17 AM   #4
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Quote:
Originally Posted by philmeister4 View Post
My car hasn’t thrown a CEL yet and I’m shocked.
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