Muffler delete
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From: PA
S600, GL450, Audi A5 Cab
Muffler delete
Oh why, oh why did I wiat sooo long to remove the mufflers from my S. This is the best $100 bucks I have spent in a LONG time. Car is just a little more throaty. You can notice it a bit at idle. And my favorite part was coming home form the shop, I actually had a flagger in a work zone give me the slow down sign. There were cars in front and behind me
I'll post a vid later.
If you own a 600, do it my friends.
Note: I think I will leave the cats alone, as I feel ity would make it WAY too loud for this type of car.
Resonators and mid pipe next weekend
I'll post a vid later.
If you own a 600, do it my friends.
Note: I think I will leave the cats alone, as I feel ity would make it WAY too loud for this type of car.
Resonators and mid pipe next weekend
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Mercedes
Resonator delete is enough sound for me . Never seen a muffler and resonator delete !!
I agree to leave the cats
Note on turbo cars there is already some exhaust muffle from the turbos - the normally aspirated cars would be extremely loud with no mufflers
I agree to leave the cats
Note on turbo cars there is already some exhaust muffle from the turbos - the normally aspirated cars would be extremely loud with no mufflers
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Joined: Mar 2013
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From: On the Dyno, Tuning.....
2003 S600
Question is, how does the sound compare to a cat & resonator delete while leaving the stock mufflers in place?
Second question is, which actually makes more power?
My thought is that deleting the cats would do more for improving power as the exhaust gases are much hotter up front and therefor the cats should pose the biggest restriction if any.
Any dyno pulls, before and after out there?
Second question is, which actually makes more power?
My thought is that deleting the cats would do more for improving power as the exhaust gases are much hotter up front and therefor the cats should pose the biggest restriction if any.
Any dyno pulls, before and after out there?
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From: PA
S600, GL450, Audi A5 Cab
Deleting the mufflers does NOT give you anymore HP, just a nice throaty little grumble.
Deleting cats has shown to give a good gain, at the cost of ALOT of noise. Not my choice for an S, IMHO.
Resonator and midpipe delete has shown gains, IF you make it a true 3" duals exhaust.
That is my next step. I have a before dyno, so I'll post an after, once I get my true duals.
Deleting cats has shown to give a good gain, at the cost of ALOT of noise. Not my choice for an S, IMHO.
Resonator and midpipe delete has shown gains, IF you make it a true 3" duals exhaust.
That is my next step. I have a before dyno, so I'll post an after, once I get my true duals.
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Joined: Mar 2013
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From: On the Dyno, Tuning.....
2003 S600
Deleting the mufflers does NOT give you anymore HP, just a nice throaty little grumble.
Deleting cats has shown to give a good gain, at the cost of ALOT of noise. Not my choice for an S, IMHO.
Resonator and midpipe delete has shown gains, IF you make it a true 3" duals exhaust.
That is my next step. I have a before dyno, so I'll post an after, once I get my true duals.
Deleting cats has shown to give a good gain, at the cost of ALOT of noise. Not my choice for an S, IMHO.
Resonator and midpipe delete has shown gains, IF you make it a true 3" duals exhaust.
That is my next step. I have a before dyno, so I'll post an after, once I get my true duals.
Generally mufflers control noise without much restriction, while the cats could create a restriction/reduction in velocity of the exhaust gases.
So your combo is no cats and you will be installing true 3" duals/deleting resonators and keeping the stock mufflers?
That's what I thinking of doing as well. Are there any video clips out there of this combo?
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From: PA
S600, GL450, Audi A5 Cab
No my friend, as it stands as of today I have cats, factory y pipe, resonators, and no mufflers. I am going to remove the factory y pipe and resonators with TRUE duals in 3".
For me, the removal of the cats would also remove the elegance of an S. After all, this is NOT a 70's muscle car, IMHO
For me, the removal of the cats would also remove the elegance of an S. After all, this is NOT a 70's muscle car, IMHO
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From: On the Dyno, Tuning.....
2003 S600
No my friend, as it stands as of today I have cats, factory y pipe, resonators, and no mufflers. I am going to remove the factory y pipe and resonators with TRUE duals in 3".
For me, the removal of the cats would also remove the elegance of an S. After all, this is NOT a 70's muscle car, IMHO
For me, the removal of the cats would also remove the elegance of an S. After all, this is NOT a 70's muscle car, IMHO
I guess that leaves me wondering why you deleted yours and are keeping the cats. Is it because you have already removed them?
My plan is to delete the cats and add a single larger oval mid-pipe through the Trans tunnel as it is beneficial to add an x-pipe, H-pipe or shared chamber pipe as close to the engine as possible. Exhaust gases flow in pulses (picture ping-pong ***** flowing through the exhaust) and when the pulse reaches the x-pipe it sees a low pressure area as the exhaust has effectively doubled in size from there back.
High pressure always seeks low pressure.
A single oval (for clearance) 4" mid-pipe would flow better than twin 3" and would cost less and take up less space.
True 3" split duals with no merge will lose that effect.
Just food for thought. ;-)
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Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
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From: PA
S600, GL450, Audi A5 Cab
I certainly agree that the S is not a 70's muscle car and shouldn't sound like one, IMHO. Which is why I'm planning on keeping the stock mufflers as the reduce noise and shouldn't hurt performance.
I guess that leaves me wondering why you deleted yours and are keeping the cats. Is it because you have already removed them?
My plan is to delete the cats and add a single larger oval mid-pipe through the Trans tunnel as it is beneficial to add an x-pipe, H-pipe or shared chamber pipe as close to the engine as possible. Exhaust gases flow in pulses (picture ping-pong ***** flowing through the exhaust) and when the pulse reaches the x-pipe it sees a low pressure area as the exhaust has effectively doubled in size from there back.
High pressure always seeks low pressure.
A single oval (for clearance) 4" mid-pipe would flow better than twin 3" and would cost less and take up less space.
True 3" split duals with no merge will lose that effect.
Just food for thought. ;-)
I guess that leaves me wondering why you deleted yours and are keeping the cats. Is it because you have already removed them?
My plan is to delete the cats and add a single larger oval mid-pipe through the Trans tunnel as it is beneficial to add an x-pipe, H-pipe or shared chamber pipe as close to the engine as possible. Exhaust gases flow in pulses (picture ping-pong ***** flowing through the exhaust) and when the pulse reaches the x-pipe it sees a low pressure area as the exhaust has effectively doubled in size from there back.
High pressure always seeks low pressure.
A single oval (for clearance) 4" mid-pipe would flow better than twin 3" and would cost less and take up less space.
True 3" split duals with no merge will lose that effect.
Just food for thought. ;-)
And yes, the mufflers were thrown out for just a little noise, no power gain here. I just hated the idea that it was as quite as a prius
Thread Starter
MBWorld Fanatic!
Joined: Jan 2007
Posts: 3,341
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From: PA
S600, GL450, Audi A5 Cab
