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Cheap De Cat

If you do the cheap de-cat by knocking out the honey comb stuff out the cats do you have to do anything else

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    nope,thats it. Some say that this is not a good method, as the extra space that the gasses needed to fill could cause increase backpressure. However I had mine done this way and noticed improved reponse and quicker spool up.

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    If you do the cheap de-cat by knocking out the honey comb stuff out the cats do you have to do anything else
    surely its worth 150 quid to get the proper job :rofl:
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    as the extra space that the gasses needed to fill could cause increase backpressure.

     

    decrease backpressure dontcha mean?

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    decrease backpressure dontcha mean?

     

    Nope ;)

     

    gutting the cats by removing the insides and leaving empty chamber, means the gasses slow as they fill the larger empty chamber which means it does'nt decrease backpressure as much as replacing the cats with straight through piping.

     

    ..in theory

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