Removing primary cats
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MBWorld Fanatic!
Joined: Feb 2010
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
4ramin has headers and 100 cell cats for the street. Not exactly the same but the only person I can think of off the top with replacement primary cats.
https://mbworld.org/forums/c63-amg-w...n-rematch.html
https://mbworld.org/forums/c63-amg-w...n-rematch.html
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MBWorld Fanatic!
Joined: Jan 2009
Posts: 4,563
Likes: 42
C63 AMG
4ramin has headers and 100 cell cats for the street. Not exactly the same but the only person I can think of off the top with replacement primary cats.
https://mbworld.org/forums/c63-amg-w...n-rematch.html
https://mbworld.org/forums/c63-amg-w...n-rematch.html
He has a tune tho and that will kill the CEL.
You could always send ur ecu in to get the CEL turned off if it comes on.. I doubt it will though.
Thread Starter
Junior Member
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C63
MBWorld Fanatic!
Joined: Feb 2003
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From: Vegas and Vancouver, BC
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Jeffield had a custom DP made that removed the primaries and it is LOUD! I think if you type 'Jeffield' in youtube, you may be able to see his vid. I thinnk GT Pro may still have a DP and Fluid Motor Union at one point was flirting with the idea.
Super Member
Joined: Oct 2008
Posts: 837
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From: seattle
1990 300ce supercharged and intercooled
I made a straight pipe setup for Superlubricity a few years ago. Before he had long tubes. He had the plm headers though. We put spark plug spacers in for the rear cats and no check engine light. Sounds basically as loud as a header car. We were going to do an x pipe on it but moved on. Look up his thread on this and you can see what was made. They are hanging on my wall at the shop with his old carbon fiber hood.
Power was a little better on the top end but lost torque a little torque on the bottom.
I think the x pipe would have brought the torque back.
Power was a little better on the top end but lost torque a little torque on the bottom.
I think the x pipe would have brought the torque back.
