On Tue, 27 Sep 2005 15:23:37 +0000 (UTC), "A"
>I read with great interest again, that some people remove their cat from
>their Disco's and say the result is significantly better. When I tried this
>with mine about two years ago, the result was very poor. Its a 300 that used
>to have egr, however it has been removed - so this shouldnt affect
>performance. Can anyone tell me why mine struggled to achieve 50 mph with no
I didnt think that the cat would affect the MPG that you get from the
The cat restricts the exhaust gas flow (while it does its business).
removing it. and making your exhaust flow better should make the car
slightly nippier, but i dont see how it will help your fuel economy.
All the cars that i have changed the exhaust on get less MPG after as
the sound nicer and i thrash em more