k stephenson Posted August 11, 2010 Share Posted August 11, 2010 I run a 1996 Defender 300 TDI. This was built in October 1995. Its one of the first ones to be fitted with a cat converter. My question is I would imagine that shortly the front pipe will need re placing. If I change it for one minus the converter will it make any difference to the running of the vehicle? I fancy a stainless system but have been told that they are noisier than the metal ones. Would not having a converter make any difference to the smoke test on MOT?? Any thoughts.I would imagine that someone out there has done this. Thanks in anticipation. Keith Quote Link to comment Share on other sites More sharing options...
western Posted August 11, 2010 Share Posted August 11, 2010 Cats are not required in UK on diesel engined vehicles, so removal willnot cause any problem at MOT time. I have a full stainless steel system on my 110, haven't noticed any noise difference between it & a normal mild steel system, mines been on for well over 10 years. Quote Link to comment Share on other sites More sharing options...
crwoody Posted August 11, 2010 Share Posted August 11, 2010 You might also find it goes better too, the back-pressure caused by the cat restricts the response of the turbo, so it spins up faster without the cat. Quote Link to comment Share on other sites More sharing options...
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