Performance Exhuast for SL500

Discussion in 'Engine' started by SL Rookie, Apr 24, 2003.

  1. SL Rookie

    SL Rookie New Member

    Messages:
    5
    Joined:
    Mar 24, 2003
    Location:
    Bedfordshire
    Car:
    SL500 (129)
    I'm looking into changing the centre sections of the exhaust on a 1991 SL500. The purpose is to allow some freeflow and remove the restricted feel of the response from the throttle, oh and it may sound nicer too.

    Has anyone replaced these sections and have there been any issues to report?

    Is the CAT likely to cause a problem?
     
  2. kid-jensen

    kid-jensen Hardcore MB Enthusiast

    Messages:
    1,073
    Joined:
    Dec 16, 2002
    Location:
    Epsom Downs
    Car:
    ML 320 W164
    SL Rookie,

    IMHO, changing the centre sections will not make a noticable difference to anything.

    If your car is J reg or older, you can take off the Cats with a clear concience. Any newer than that, you'll probably have to replace them for the MOT.

    I say probably, you might just get away with it....;)

    The change in performance will not be that great though, but you may see 1-2 mpg improvement in consumption.
     
  3. S32 AMG

    S32 AMG New Member

    Messages:
    4
    Joined:
    Aug 9, 2003
    NOT TRUE AT ALL, my god

    mercedes catalytic converter and exhaust is probably THE MOST restrictive of ANY manufacturer,

    on your SL500 you should get roughly 40HP boost with straight pipes and high flow exhaust, not to mention it would sound absolutely amazing under full throttle. That would be the very first mod i do, ALong with high flow ram air cold air intake
     
  4. GrahamC230K

    GrahamC230K MB Club Veteran

    Messages:
    9,830
    Joined:
    Jul 14, 2002
    Car:
    Audi A3 & S4 quattro
    You don't think 40BHP is a bit exagerated?
     

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