1994 E36 325TD - Can I De-cat my 325td???

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  1. 1994 E36 325TD - Can I De-cat my 325td??? 
    #1
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    Just wondering if it is safe to de-cat my car and will it make any difference to power or torque? Or any difference to economy?

    Cheers!
    BMW 540i 1996 E39 BW70066
     
     

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    With it being a diesel you may gain more by having a chip/remap done on the car???
     
     

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    De cat is much cheaper tho as I have a friend who welds so could do it quite cheap. Is it worth it for the advantages?
    BMW 540i 1996 E39 BW70066
     
     

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    The problem I found with the 318is petrol engine was the pulling through the rev range seemed to be affected (flat spots). The difference in torque was definately noticeable

    I still had my car chipped and the rev range seemed to even out.
     
     

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    I doubt it would make that much of a noticeable difference on a diesel
     
     

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    I'm not even sure it would be adviseable on a diesel? What do you think Ronnnie?
     
     

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    I can't imagine the cat being that restrictive, naturally the faster the exhaust gas can escape the better to a point but a diesel is slow revving anyhow , I'm not sure as I don't play on rolling roads etc
     
     

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    Cheers again!
    BMW 540i 1996 E39 BW70066
     
     

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    Quote Originally Posted by A20 RYM View Post
    I'm not even sure it would be adviseable on a diesel? What do you think Ronnnie?

    No, your right.

    Is it a turbo diesel? as it may help there.

    But on normally aspirated cars (petrol and diesel) they need SOME backpressure in the exhaust system to help scavenge the gases after combustion.

    and you can/will lose power removing cats on cars like that
     
     

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    It is a turbo diesel.
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