MBWorld.org Forums

CLK-Class (W208) 1998-2002: CLK 200, CLK 230K, CLK 320, CLK 430 [Coupes & Cabriolets]

2nd cat delete, any performance gains?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 08-31-2011, 08:53 AM
  #1  
Junior Member
Thread Starter
 
dsisco's Avatar
 
Join Date: Feb 2007
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
2nd cat delete, any performance gains?
hey guys,

ive just changed my rear muffler with a remus back box on my 430, i like the sound, nice tone and not loud.
what i wanted to know if there is any performance gains in deleting the secondary cats?
im thinking of replacing it with 2x2.5" >3" Y pipe then 3" to resonator

would there be a loss of torque doing this?

have done search but no real answers.
dsisco is offline  
Reply Like
Old 08-31-2011, 11:54 AM
  #2  
Member
 
Just Is's Avatar
 
Join Date: Jan 2008
Location: Kansas City/Lawrence, KS
Posts: 249
Received 5 Likes on 5 Posts
2001 CLK 430 w/5.4 swap, 2000 CLK430
would like to know this as well. the previous owner had the second cat removed. all i've noticed is a bit more sound.
Just Is is offline  
Reply Like
Old 08-31-2011, 04:41 PM
  #3  
MBWorld Fanatic!
 
dlbehrns's Avatar
 
Join Date: May 2007
Location: Nebraska
Posts: 1,435
Likes: 0
Received 0 Likes on 0 Posts
99CLK320,
ghostrider fabricated an exhaust for his 430 without the 2ndary cats and Williams007 has a a 320 he purchased in Japan and I know he doesn't have primary cats. I would look up/search posts by both those guys.
dlbehrns is offline  
Reply Like
Old 08-31-2011, 08:42 PM
  #4  
MBWorld Fanatic!
 
Williams707's Avatar
 
Join Date: Mar 2007
Location: Yokohama, Japan
Posts: 1,265
Received 30 Likes on 23 Posts
2000 CLK 320
Well not sure about gains since my car never came with primary cats but I hear there are some.
Williams707 is offline  
Reply Like
Old 09-01-2011, 06:03 PM
  #5  
Junior Member
 
HEEMS's Avatar
 
Join Date: Sep 2008
Location: new york city
Posts: 45
Likes: 0
Received 0 Likes on 0 Posts
2002 ml55
Originally Posted by dsisco
hey guys,

ive just changed my rear muffler with a remus back box on my 430, i like the sound, nice tone and not loud.
what i wanted to know if there is any performance gains in deleting the secondary cats?
im thinking of replacing it with 2x2.5" >3" Y pipe then 3" to resonator

would there be a loss of torque doing this?

have done search but no real answers.
leave your cats alone u will loose back preasure. plus without any ecu flash and software i wouldnt see any gains just some regret on ur take off. but if you plan on putting that y pipe in i think it will compensate the lack in back preasure not to sure tho
HEEMS is offline  
Reply Like
Old 09-01-2011, 09:22 PM
  #6  
MBWorld Fanatic!
 
Williams707's Avatar
 
Join Date: Mar 2007
Location: Yokohama, Japan
Posts: 1,265
Received 30 Likes on 23 Posts
2000 CLK 320
Originally Posted by HEEMS
leave your cats alone u will loose back preasure. plus without any ecu flash and software i wouldnt see any gains just some regret on ur take off. but if you plan on putting that y pipe in i think it will compensate the lack in back preasure not to sure tho
Are you serious????

CLKs in Japan come straight from the MB Factory without any Primary CATs.
Williams707 is offline  
Reply Like
Old 09-02-2011, 02:56 AM
  #7  
Junior Member
Thread Starter
 
dsisco's Avatar
 
Join Date: Feb 2007
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
im from australia, so im guessing our cars will be similar to jap spec or euro spec
dsisco is offline  
Reply Like

Trending Topics

Old 09-02-2011, 03:06 AM
  #8  
Junior Member
Thread Starter
 
dsisco's Avatar
 
Join Date: Feb 2007
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by HEEMS
leave your cats alone u will loose back preasure. plus without any ecu flash and software i wouldnt see any gains just some regret on ur take off. but if you plan on putting that y pipe in i think it will compensate the lack in back preasure not to sure tho
my other idea would be to replace the secondaries with an x-pipe which will go into the factory y pipe,
im guessing this will cause more of a restriction as the exhaust would be crossing over too many times.
dsisco is offline  
Reply Like
Old 09-02-2011, 05:06 AM
  #9  
MBWorld Fanatic!
 
Williams707's Avatar
 
Join Date: Mar 2007
Location: Yokohama, Japan
Posts: 1,265
Received 30 Likes on 23 Posts
2000 CLK 320
Originally Posted by dsisco
my other idea would be to replace the secondaries with an x-pipe which will go into the factory y pipe,
im guessing this will cause more of a restriction as the exhaust would be crossing over too many times.
How about for your secondary cats go with a free flow cat instead

Seems both Australia and Japan CLKs does not come with Primary CATs. Wondering what about other countries
Last edited by Williams707; 09-02-2011 at 05:08 AM.
Williams707 is offline  
Reply Like
Tags
Back to Subforum
CLK-Class (W208)
View Next Unread
FS: 2002 CLK 320 Coupe

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search
Quick Reply: 2nd cat delete, any performance gains?


Reply Closed Thread Share

All times are GMT -4. The time now is 05:41 AM.