C32 AMG, C55 AMG (W203) 2001 - 2007

Question: Removing Secondary Cats (possible issues)

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Old 04-01-2011, 06:40 AM
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86 16v turbo, 02 c32
Originally Posted by AMS Performance
You will have no problems. Although it is preferred to put in an X-pipe instead of just running two parallel straight pipes. It will improve scavenging effects and also help "clean up" the exhaust note quite a bit. You should pick up some low end part throttle torque, and high end HP WOT, but it won't really do anything in the mid range (maybe 1HP).

hope that helps.
AMS
I already made the x-pipe. I was just trying to figure out the sparkplug non fauler deal... lol
Old 04-01-2011, 07:51 AM
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2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
Originally Posted by newbenz2
I already made the x-pipe. I was just trying to figure out the sparkplug non fauler deal... lol
What diameter pipe are you using? I'm going with 2.5" post downpipes. Also removing primaries.
Old 12-18-2012, 07:15 PM
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Old 01-07-2013, 12:28 PM
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2008 e63 AMG
Exclamation Question on removing secondary's cats and resonator

Hey guys I have a 2002 c32 AMG and currently I took the stock muffler off and replaced it with a flowmaster. It sounds good on the outside but too much drone inside around 2500 RPM. I was doing some Research And was thinking about doing a secondary cat and resonator delete with the stock muffler. I have heard the video clips on YouTube and I love the sound with those two things deleted and putting the stock muffler back on. My only concern is how loud is the drone going to be inside the vehicle when crushing on streets or highway with the secondary cats and the resonator deleted?. When I bought the car, it came with the resonator deleted and the drone was not bad,you could barely hear it. Also when the secondary cats are deleted, should I replace them with straight pipes or a x-pipe going to a straight pipe where the resonator would have been. Any suggestions? Thanks
Old 01-12-2013, 01:19 PM
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2006 C55 AMG
Originally Posted by C32 AMG////
Hey guys I have a 2002 c32 AMG and currently I took the stock muffler off and replaced it with a flowmaster. It sounds good on the outside but too much drone inside around 2500 RPM. I was doing some Research And was thinking about doing a secondary cat and resonator delete with the stock muffler. I have heard the video clips on YouTube and I love the sound with those two things deleted and putting the stock muffler back on. My only concern is how loud is the drone going to be inside the vehicle when crushing on streets or highway with the secondary cats and the resonator deleted?. When I bought the car, it came with the resonator deleted and the drone was not bad,you could barely hear it. Also when the secondary cats are deleted, should I replace them with straight pipes or a x-pipe going to a straight pipe where the resonator would have been. Any suggestions? Thanks
Look up J Pipe/Helmholtz Resonator, i added 29" j-pipe no drone now.
Old 04-23-2013, 03:56 PM
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C55 amg
So did the check engine light come on cuz i wanna do it to mine but i dont wanna mess it up
Old 04-23-2013, 04:22 PM
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modifying anything after the o2 sensors (secondary cats/resonator/mufflers) will not pop a CEL.
Old 04-25-2013, 01:40 PM
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Originally Posted by ghiaguy
modifying anything after the o2 sensors (secondary cats/resonator/mufflers) will not pop a CEL.
+1

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