Need advice on removing rear two cats on a W204 C300 Petrol
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 66
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From: LONDON UK
C300 BLACK
Need advice on removing rear two cats on a W204 C300 Petrol
Hello All,
I am considering taking the two rear cats off my exhaust system. But having some doubt?
Was at a Mercedes specialist today, he advised, not to take the rear cats off my car. Reason being, it would cause the front cats to work extremely harder. Also he said the Lamber sensors at the front would be giving wrong readings to the rear sensors and would throw up the engine management light. Long term, he said it is not a good idea.
I am booking my car into an exhaust garage to have the following done.
Take rear two cats off. (unsure yet)
straight pipe into (magnaflow) x pipe or a custom H pipe?
change the two mufflers for 6 x 3 oval silencers. (I think the smaller the mufflers, the better the sound?)
staggered quad 4 x 3" tips.
All advice and help much appreciated.
I am considering taking the two rear cats off my exhaust system. But having some doubt?
Was at a Mercedes specialist today, he advised, not to take the rear cats off my car. Reason being, it would cause the front cats to work extremely harder. Also he said the Lamber sensors at the front would be giving wrong readings to the rear sensors and would throw up the engine management light. Long term, he said it is not a good idea.
I am booking my car into an exhaust garage to have the following done.
Take rear two cats off. (unsure yet)
straight pipe into (magnaflow) x pipe or a custom H pipe?
change the two mufflers for 6 x 3 oval silencers. (I think the smaller the mufflers, the better the sound?)
staggered quad 4 x 3" tips.
All advice and help much appreciated.
Member
Joined: Nov 2011
Posts: 83
Likes: 3
From: Florida, USA
2012 e350, a BMW, an Audi, a Camaro
Hello All,
I am considering taking the two rear cats off my exhaust system. But having some doubt?
Was at a Mercedes specialist today, he advised, not to take the rear cats off my car. Reason being, it would cause the front cats to work extremely harder. Also he said the Lamber sensors at the front would be giving wrong readings to the rear sensors and would throw up the engine management light. Long term, he said it is not a good idea.
I am booking my car into an exhaust garage to have the following done.
Take rear two cats off. (unsure yet)
straight pipe into (magnaflow) x pipe or a custom H pipe?
change the two mufflers for 6 x 3 oval silencers. (I think the smaller the mufflers, the better the sound?)
staggered quad 4 x 3" tips.
All advice and help much appreciated.
I am considering taking the two rear cats off my exhaust system. But having some doubt?
Was at a Mercedes specialist today, he advised, not to take the rear cats off my car. Reason being, it would cause the front cats to work extremely harder. Also he said the Lamber sensors at the front would be giving wrong readings to the rear sensors and would throw up the engine management light. Long term, he said it is not a good idea.
I am booking my car into an exhaust garage to have the following done.
Take rear two cats off. (unsure yet)
straight pipe into (magnaflow) x pipe or a custom H pipe?
change the two mufflers for 6 x 3 oval silencers. (I think the smaller the mufflers, the better the sound?)
staggered quad 4 x 3" tips.
All advice and help much appreciated.
cheers! mike
Last edited by bhvrdr; Jan 20, 2012 at 05:31 PM.
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 66
Likes: 0
From: LONDON UK
C300 BLACK
deciding to not bother touching the cats at all until they are worn and need changing.
as for the mufflers/silcencers. am i right in saying, the smaller the box the better sound quality?
as for the mufflers/silcencers. am i right in saying, the smaller the box the better sound quality?
Member
Joined: Nov 2011
Posts: 83
Likes: 3
From: Florida, USA
2012 e350, a BMW, an Audi, a Camaro
cheers! mike
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 66
Likes: 0
From: LONDON UK
C300 BLACK
I want the car to have a nice loud grumble when stationary.
Once I put my foot down, would like it too scream but with as little rasp as possible.
I did intend to go full straight but worried the rasp will sound too much and also don't want it sounding cheap and jap racer style.
Once I put my foot down, would like it too scream but with as little rasp as possible.
I did intend to go full straight but worried the rasp will sound too much and also don't want it sounding cheap and jap racer style.
Super Member
Joined: Mar 2011
Posts: 955
Likes: 0
From: NNJ
'11 C350 '13 F150 lariat
The size of the mufflers dont necessarily change the tone to a good sound. Its the chambering that controls the tone. If you get rid of the resonator and add decent mufflers it will sound great. No need to remove secondary cats, if it was an 8 cyl and u were doing full exhaust including headers yes pull cats. In our applications theres no need, and doing so causes lots of probs
