C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Cat is broken

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Old Jun 27, 2010 | 03:12 PM
  #1  
jibaholic101's Avatar
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From: bellevue, wa
women wild
Cat is broken

there is a ticking and knocking noise all the time when i drive, the stealership quoted $1100 to replace it and install. my reaction =

so i want to just delete the cats and replace with straight pipe as that will be cheaper and i can get power.

who makes the cat delete pipes and o2 sims?

thanks
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Old Jun 27, 2010 | 03:26 PM
  #2  
sinaa's Avatar
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C240
why dont u go with high flow aftermarket cats, that way u dont f*** the environment and also gain power
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Old Jun 27, 2010 | 03:32 PM
  #3  
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From: Atlanta, GA
Quite a few:)
+1 on highflow cats.. honestly, the exhaust in your car is designed w/ a cat in mind/the wave pattern is tuned as such.. Magnaflow makes an Excellent and very reasonably priced product..

Not only will your exhaust be still working Ideally, and thus producing max HP, but you'll be 50 state legal to boot.

MF spuncast High Flow cats run about 125 FWIW.

Jonathan
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Old Jun 27, 2010 | 03:40 PM
  #4  
MW_ATL's Avatar
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From: Atlanta, GA
'02 C230 Coupe (Me) '03 SLK320 6MT (Wife)
+1 on replacing the cats. There is no reason to delete them, especially on a street car in this day and age.
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Old Jun 27, 2010 | 04:20 PM
  #5  
W203E35's Avatar
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2006 C350 Sport 6MT
Originally Posted by jibaholic101
there is a ticking and knocking noise all the time when i drive, the stealership quoted $1100 to replace it and install. my reaction =

so i want to just delete the cats and replace with straight pipe as that will be cheaper and i can get power.

who makes the cat delete pipes and o2 sims?

thanks
Any exhaust shop can do it but I wouldn't recommend this. Just go to an exhaust shop and get a quote from there.
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Old Jun 27, 2010 | 04:50 PM
  #6  
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women wild
who makes high flow cats besides magnaflow? also links to the product would be very helpful especially the magnaflow high flow

Last edited by jibaholic101; Jun 27, 2010 at 04:53 PM.
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Old Jun 27, 2010 | 05:29 PM
  #7  
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2003 c240 4matic wagon
check the warrenty

here in canada the cat ans several othr parts are covered by a 130,000km 8 year warrenty
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Old Jun 27, 2010 | 07:05 PM
  #8  
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Originally Posted by contact148
check the warrenty

here in canada the cat ans several othr parts are covered by a 130,000km 8 year warrenty
too many miles for that, its not under warranty
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Old Jun 28, 2010 | 12:55 PM
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Agreed. Eight years and 80,000 miles in the USA, I believe. Change the cats if you need to to high flow. The reality is on the small V6 motors your cats flow more than you need as does your resonator which is straight through and no power is gained from removing it. How would you pass emissions in your state if you removed them? Your car is designed to perform with them in place for the performance of the car and for cleaning up of the environment as well. Please, do your part and help keep it clean. We will all be better off for it.

Last edited by ejsheltra; Jun 28, 2010 at 01:04 PM.
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Old Jun 28, 2010 | 01:11 PM
  #10  
phister's Avatar
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Magnaflow, random technology, catco all make high flow cats. All are reasonably priced compared to the OEM ones.
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Old Jun 28, 2010 | 02:16 PM
  #11  
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thanks for the help gusy

Originally Posted by ejsheltra
Agreed. Eight years and 80,000 miles in the USA, I believe. Change the cats if you need to to high flow. The reality is on the small V6 motors your cats flow more than you need as does your resonator which is straight through and no power is gained from removing it. How would you pass emissions in your state if you removed them? Your car is designed to perform with them in place for the performance of the car and for cleaning up of the environment as well. Please, do your part and help keep it clean. We will all be better off for it.
yeah i know, those straight piped cars are killing us all
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