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[-Alex-]

Hi guys probably been done a hundred times but couldn't turn anything up on the search.

Anyone had sports cats or de-catted their Omega? I am thinking of the x30xe's in particular but any comments welcome.

Just wondering if there are any real gains, differences or problems with the idea? I'm guessing that de-cats won't pass an MOT.

I'm going to have my exhaust fiddled with anyway and wondering if I could tie them in on a deal


Cheers for reading
Alex

[Lizzie_Zoom]

Hi guys probably been done a hundred times but couldn't turn anything up on the search.

Anyone had sports cats or de-catted their Omega? I am thinking of the x30xe's in particular but any comments welcome.

Just wondering if there are any real gains, differences or problems with the idea? I'm guessing that de-cats won't pass an MOT.I'm going to have my exhaust fiddled with anyway and wondering if I could tie them in on a deal


Cheers for reading
Alex

Dead right!  Your miggy will not be street legal without them.

Only vehicles registered before August 1992 can avoid the legal requirement for cat's.

[-Alex-]

Thanks Lizzie, puts that one to bed - the sports cats are my particular area of interest thankfully. De-catted my old R620ti and had it sail an MOT. I am sure the results were fabricated in honesty

[Andyb]

dont quote me on this and no lizzy i am not doubting u at all
but i am sure that i read some place that most v6 cars will pass mot without a cat i know my 98 v6 mondeo used to i think its somthing to do with running lean at idle but not to sure worth waiting till u find out for deffo  

[-Alex-]

Thanks for the reply

Can we forsee any problems running custom high-flow cats on these cars please? Will it naff up sensors or do any other nasty thing please?

[Kevin Wood]

dont quote me on this and no lizzy i am not doubting u at all
but i am sure that i read some place that most v6 cars will pass mot without a cat i know my 98 v6 mondeo used to i think its somthing to do with running lean at idle but not to sure worth waiting till u find out for deffo  

I would be surprised if it did, to be honest. Having a catalytic converter requires the engine to run a chemically correct "stoichiometric" mixture (neither lean nor rich) as much of the time as possible. It does this by running closed-loop based on lambda sensor output, even at idle. A soichiometric mixture will not give you a low enough CO emission to pass the MOT emissions check without a cat.

My feeling is that the weakest link in the exhaust system on the V6 are the manifolds so it's not worth modifying in other areas until you have a nice tubular set on there.

Kevin

[cem_devecioglu]

from experience,

if you de-cat you will loose low rpm torque ..

Fuel consumption will increase..  (if not replaced with a similiar flow apparat)

and you will have extra problems with welding after..

Not adviced :-/


ps: increase in power come in very high rpms that you will rarely benefit..

[-Alex-]

Thanks chaps, fleabay German chip and fiddled exhaust  it is then

[Richard A]

Best exhaust for road legal V6 Omega - Genuine Vauxhall Replacement with TC
regards
richard a

[-Alex-]

Best exhaust for road legal V6 Omega - Genuine Vauxhall Replacement with TC
regards
richard a

I tend to agree, I preferred the look of the old MV6 one too  :-/