Omega Owners Forum

Trading Area => Car Parts, bits For Sale & Wanted => Topic started by: amba on 29 June 2019, 16:18:44

Title: OS Cat for 2003 3.2 Saloon
Post by: amba on 29 June 2019, 16:18:44
As above in need of a replacement OS cat if anybody has 1 going spare. :y
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: dave the builder on 29 June 2019, 16:58:34
You could ask Terry (3.2 ex plod, so manual  :-\)
thread about one he may scrap clicky (http://www.omegaowners.com/forum/index.php?action=profile;area=showposts;u=191)

Title: Re: OS Cat for 2003 3.2 Saloon
Post by: Nick W on 29 June 2019, 19:16:54
I had one of THESE (https://www.ebay.co.uk/itm/Fits-Vauxhall-Omega-2-5-V6-Genuine-BM-Cats-Exhaust-Manifold-Catalytic-Converter/292661536418?fits=Car+Make%3AVauxhall%7CModel%3AOmega&hash=item4423fca6a2:g:wmsAAOSwjYdbX0Vq) on my car for five years. Fit perfectly, with no issues.


They have 3.2 ones as well, but they're £200. That would be worth the £10 for a lambda boss and a few seconds welding to do away with the pre-cat to me.
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: dave the builder on 29 June 2019, 19:32:40
i'm sure I've seen clamp on lambda bosses that require no welding, just a hole
can't remember where though  :(
but don't the 2.5 cats have different clamps to the manifold  :-\
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: Nick W on 29 June 2019, 19:38:58
i'm sure I've seen clamp on lambda bosses that require no welding, just a hole
can't remember where though  :(
but don't the 2.5 cats have different clamps to the manifold  :-\


You have to trim the top of the downpipe slightly where it enters the manifold.


Flap disc in your best precision angle-grinder.
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: dave the builder on 29 June 2019, 19:54:01
i'm sure I've seen clamp on lambda bosses that require no welding, just a hole
can't remember where though  :(
but don't the 2.5 cats have different clamps to the manifold  :-\


You have to trim the top of the downpipe slightly where it enters the manifold.


Flap disc in your best precision angle-grinder.

Thanks for the info  :)
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: biggriffin on 29 June 2019, 21:17:46
i'm sure I've seen clamp on lambda bosses that require no welding, just a hole
can't remember where though  :(
but don't the 2.5 cats have different clamps to the manifold  :-\


You have to trim the top of the downpipe slightly where it enters the manifold.


Flap disc in your best precision angle-grinder.

Thanks for the info  :)


You take about 3mm off.
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: Nick W on 29 June 2019, 22:10:17



You have to trim the top of the downpipe slightly where it enters the manifold.


Flap disc in your best precision angle-grinder.




You take about 3mm off.


which is about what you get if you draw round with a sharpie resting on the flange.


But that's probably too simple to be an OOF recommendation......
Title: Re: OS Cat for 2003 3.2 Saloon
Post by: Doctor Gollum on 30 June 2019, 02:19:22



You have to trim the top of the downpipe slightly where it enters the manifold.


Flap disc in your best precision angle-grinder.




You take about 3mm off.


which is about what you get if you draw round with a sharpie resting on the flange.


But that's probably too simple to be an OOF recommendation......
I think it is approved as long as it's a genuine Sharpie ;D