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Thread: Need help with exhaust setup

  1. #1

    Need help with exhaust setup

    This is my first time posting but been a member for a couple months. anyways. I have a 2000 C280. I just got a resonator delete done along with a magnaflow muffler (i don't know what kind just a basic one). to be honest it sounds like crap and i am very disappointed. it sounds nothing like this http://youtu.be/0BR4HRHr7Pc which i was hoping for. Any suggestions on what I should do without breaking my bank and buying supersprint or eisenmann? Should i go straight pipe (http://youtu.be/bj9d20eTn1M)?

  2. #2
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    Did you have custom piping done or was the muffler just tacked on the end of the exhaust? the stock exhaust on 202's is very restrictive and probably contributes do it. I'm not a fan of magnaflow anyways, but if you didn't have a custom exhaust made I would start there. I have 2.5inch stainless going from the cat back and a high flow resonator and muffler.
    Completely mad.
    '99 C230K, intake and exhaust more on the way.
    '86 MKIV Escort RS Turbo, stock for now, chip and more boost on the way
    '75 Fiat 124 Spider, koni shocks, bigger carb and drilled/slotted brakes
    to tune and hoon the mbz master race.

  3. #3
    Senior Member anf6789's Avatar
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    I have a full Magnaflow exhaust on my 1994 C280, though its the I6, not the V6 like yours, and it sounds amazing. Replaced both the rear muffler and resonator with magnaflow, along with an Intake. Very smooth and mellow, though much louder then stock. Look at my car in the members gallery, or search Magnaflow exhaust my thread should be there.
    2014 Black Sapphire BMW 328d xDrive
    1997 Brilliant Silver C36 AMG 183k miles (SOLD)
    1994 Spruce Green C280 176k miles (SOLD)
    Drexel Business '11



  4. #4
    thanks for the response. i got custom piping done. It's 2.5" straight pipe to magnaflow muffler. what kind of muffler do you have?

  5. #5
    appreciate the response. I got a complete resonator delete and went with just straight pipe. the guy that did my exhaust said give it a couple weeks to break in. was this true for you? I don't have a custom intake i just replaced the air filter with an high air flow k&n air filter

  6. #6
    Senior Member anf6789's Avatar
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    Mine is custom piping as well. It will get louder after break in, though not by much. the packing just gets broken in. I have a SS magnaflow universal muffler with tips, and a SS magnaflow 14" round resonator after the cats.
    2014 Black Sapphire BMW 328d xDrive
    1997 Brilliant Silver C36 AMG 183k miles (SOLD)
    1994 Spruce Green C280 176k miles (SOLD)
    Drexel Business '11



  7. #7
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    I have a vibrant performance muffler and resonator and yeah it needs to break in. It will get a little quieter and then louder once it's broke in. If it still sounds liek crap after a few weeks I would check the cats if they are clogged and check for exhaust leaks.
    Completely mad.
    '99 C230K, intake and exhaust more on the way.
    '86 MKIV Escort RS Turbo, stock for now, chip and more boost on the way
    '75 Fiat 124 Spider, koni shocks, bigger carb and drilled/slotted brakes
    to tune and hoon the mbz master race.

  8. #8
    oh ok. do you have a recording of your exhaust?

  9. #9
    i was thinking of installing evosport cats. right now it i can hear it at lower rpms but it isnt a deep noise sounds kinda ricey and at the higher rpms i get more engine noise than exhaust sound

  10. #10
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    That's one of the reasons I don't like magnaflow. New cats will make it a lot louder. I don't have a recording but i have been meaning to have one made.
    Completely mad.
    '99 C230K, intake and exhaust more on the way.
    '86 MKIV Escort RS Turbo, stock for now, chip and more boost on the way
    '75 Fiat 124 Spider, koni shocks, bigger carb and drilled/slotted brakes
    to tune and hoon the mbz master race.

  11. #11
    what do you think of the straight pipe exhaust i posted? its a 2.6 L m112 engine i have the 2.8 L m112

  12. #12
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    wait wait wait. that's the issue, you have the V6. the older C280s use the M104 inline 6, a V6 wont sound the same as an I6.

    I'm guessing your car sounds something like this but louder?
    http://www.youtube.com/watch?v=u3rgz3e-R80
    Completely mad.
    '99 C230K, intake and exhaust more on the way.
    '86 MKIV Escort RS Turbo, stock for now, chip and more boost on the way
    '75 Fiat 124 Spider, koni shocks, bigger carb and drilled/slotted brakes
    to tune and hoon the mbz master race.

  13. #13
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    I had an Magnaflow muffler on my car before, took it off cause the excessive drone was killing me. Droned throughout all RPMs, barely hear my music. and this was just an add on, remove OEM muffler. Its a I6
    1997 C280 Sport

  14. #14
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    does anyone know of a hi flow cat and resignator i can add on when i do custom piping that will keep my car smog legal? im not sure about MBs but i remember in my old JDM cars, whenever i changed the cat and res, i failed with flying colors...i have had custom piping done just yet but will be in the future, my muffler isnt as close to magnaflow quality though, i got it off of ebay, but sounds pretty darn nice on my 96 c280, not sure if thats v6 or i6, if anyone knows and can clear that up for me, that would be awesome...thanks

  15. #15
    you have the I6. the resonator helps silence the exhaust and has nothing to do with emissions. You could just use a high flow magnaflow cat idk how they cost but i'm planning to the buy the 200 cpi cat from evosport.com

  16. #16
    i see. yeah its similar to that but louder at the lower rpms and once pass 4k you cant even hear the exhaust just the engine. i guess im just gonna save up for evosport cats and see how it sounds then

  17. #17
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    Chim, there will be no high flow cat that will allow you to pass smog. OEM or nothing at all, the smell without one can be fixed with a high flow cat but it won't eliminate the smell.

    and yea for the i6, low RPM is massively loud and the noise isn't what a MB is suppose to sound like..
    1997 C280 Sport

  18. #18
    Quote Originally Posted by 97C28O View Post
    Chim, there will be no high flow cat that will allow you to pass smog. OEM or nothing at all, the smell without one can be fixed with a high flow cat but it won't eliminate the smell.

    and yea for the i6, low RPM is massively loud and the noise isn't what a MB is suppose to sound like..
    Are you sure? I think high flow cats still allow you to pass emissions test. If they didn't pass emissions then muffler shops wouldn't sell them since it would be illegal to have. Unless you know something that I don't or I'm wrong

  19. #19
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    Quote Originally Posted by 97C28O View Post
    Chim, there will be no high flow cat that will allow you to pass smog. OEM or nothing at all, the smell without one can be fixed with a high flow cat but it won't eliminate the smell.

    and yea for the i6, low RPM is massively loud and the noise isn't what a MB is suppose to sound like..
    thanks man, yea i didnt think it could be possible, so should i just upgrade all my piping and keep the cat and res stock?

  20. #20
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    Quote Originally Posted by deejaykay2345 View Post
    Are you sure? I think high flow cats still allow you to pass emissions test. If they didn't pass emissions then muffler shops wouldn't sell them since it would be illegal to have. Unless you know something that I don't or I'm wrong
    muffler shops dont care whats legal or illegal man, theyre there to make money...lol especially when you talk about performance u know? its ur responsibility to keep ur car smog legal and know what your buying

  21. #21
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    Quote Originally Posted by chimchongdlight View Post
    thanks man, yea i didnt think it could be possible, so should i just upgrade all my piping and keep the cat and res stock?

    if you want to do that, I suggest making a complete new system so you van bolt on bolt off whenever you need to swap it. make hinges so you can just bolt right up
    1997 C280 Sport

  22. #22
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    From what i understand that's what most people in Cali do. Aftermarket shit has to meet CARB standards and it's an approval process. Now way in hell they will approve a custom exhaust. So you have to be ale to bolt yours back on.
    Completely mad.
    '99 C230K, intake and exhaust more on the way.
    '86 MKIV Escort RS Turbo, stock for now, chip and more boost on the way
    '75 Fiat 124 Spider, koni shocks, bigger carb and drilled/slotted brakes
    to tune and hoon the mbz master race.

  23. #23
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    yea it sucks out here

    you guys mean bolt on and off from the stock cat to the aftermarket cat right? not the whole exhaust set up

  24. #24
    Quote Originally Posted by chimchongdlight View Post
    muffler shops dont care whats legal or illegal man, theyre there to make money...lol especially when you talk about performance u know? its ur responsibility to keep ur car smog legal and know what your buying
    in washington the laws are different, i just noticed that you live in cali. my friend has high flow cats on his g35 and he passed emissions. its illegal to sell products from wood stoves to catalytics that don't pass emissions or at least here in wa unless the car is for strictly off road use only. im pretty sure its the same in cali too

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