Secondary cat delete? With resonator delete and C63 mufflers...? Too loud? CELs? etc.
Thread Starter
MBWorld Fanatic!
Joined: Jan 2011
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2006 E55
Secondary cat delete? With resonator delete and C63 mufflers...? Too loud? CELs? etc.
Folks-
I just purchased some C63 mufflers (finally) and plan to get my resonator deleted.
My question for those that have deleted the resonators/secondary cats/both, how much louder does the secondary cat deletion make the car? I am not attempting to wake up my family/neighbors on cold morning starts in the garage.
I was thinking the resonator delete with C63 mufflers would be nice and loud enough, but I am thinking why not delete the secondaries while they are under the car.
I am assuming the secondaries won't throw CEL because there O2 aren't there, just want to make sure...any issues people have had with deleting secondaries?
Secondly, would I see a significant loss of torque down low when deleting the secondaries? If so, negligible? I am thinking for my shop to weld two stainless pipes in the palce of the resonators and similar setup in place of the cats, if I decide to go that route. I understand the C63 mufflers would have to be fabbed/welded as well so want to be sure I do it once and correctly.
Thanks for any input from you guys who have done exhaust work.
I just purchased some C63 mufflers (finally) and plan to get my resonator deleted.
My question for those that have deleted the resonators/secondary cats/both, how much louder does the secondary cat deletion make the car? I am not attempting to wake up my family/neighbors on cold morning starts in the garage.
I was thinking the resonator delete with C63 mufflers would be nice and loud enough, but I am thinking why not delete the secondaries while they are under the car.
I am assuming the secondaries won't throw CEL because there O2 aren't there, just want to make sure...any issues people have had with deleting secondaries?
Secondly, would I see a significant loss of torque down low when deleting the secondaries? If so, negligible? I am thinking for my shop to weld two stainless pipes in the palce of the resonators and similar setup in place of the cats, if I decide to go that route. I understand the C63 mufflers would have to be fabbed/welded as well so want to be sure I do it once and correctly.
Thanks for any input from you guys who have done exhaust work.
Last edited by ArmoE55; Oct 10, 2013 at 10:10 AM.
Thread Starter
MBWorld Fanatic!
Joined: Jan 2011
Posts: 2,159
Likes: 160
2006 E55
99% sure I will NOT get headers. 
I just need the car to be a louder than stock, but not overbearing. I was hoping the res delete and C63s would be sufficient, but now I'm thinking secondaries to go while they're down there. From what I've gathered, the res delete doesn't do much for sound. Just some decent weight savings.
I just need the car to be a louder than stock, but not overbearing. I was hoping the res delete and C63s would be sufficient, but now I'm thinking secondaries to go while they're down there. From what I've gathered, the res delete doesn't do much for sound. Just some decent weight savings.
MBWorld Fanatic!
Joined: Jun 2009
Posts: 4,429
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From: Cypress, TX
'06 E55, '15 Jeep SRT8, '94 Mustang GT
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Thread Starter
MBWorld Fanatic!
Joined: Jan 2011
Posts: 2,159
Likes: 160
2006 E55
Is this your setup? Any vid clips for me please? (Although vid prob isn't the most accurate judgment, it'll give me a good idea). Thanks man!
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