Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: omprezaman on 27 May 2016, 06:38:18

Title: fitting 3 litre cats to a 3.2
Post by: omprezaman on 27 May 2016, 06:38:18

Has anyone fitted 3.0 litre cats to a 3.2? Is it a simple as in are the pipe lengths and shapes the same, what happens to the precat sensor as I presume the 3.0 only has 1 sensor per pipe whereas the 3.2 has 2, also are there any advantages to doing this, if so what? My 3.2 needs a new pair of cats and was considering the 3.0 cats as an option as for one reason I can get them cheaper than 3.2 cats. Also to note the car has a cat back high flow stainless exhaust. Thanks

Title: Re: fitting 3 litre cats to a 3.2
Post by: ted_one on 27 May 2016, 07:35:07

Both of my 3.2's have been done,they were virtually a straight swap but with a small amount of fettling which someone will be along to tell you what's needed, as I didn't do the work but as usual stood and watched : ::):)I brought the approved version of the 3.0 ltr cats as I wasn't to sure wether the emissions would be affected on the MOT,they cost a bit more but the cars sailed through the MOT. :y

Title: Re: fitting 3 litre cats to a 3.2
Post by: Jimbob on 27 May 2016, 07:42:20

Have a look here :

http://www.omegaowners.com/forum/index.php?topic=104510.msg1308946#msg1308946

basically need to add in the extra lambda sensor, and remove some of the flange.

Title: Re: fitting 3 litre cats to a 3.2
Post by: omprezaman on 27 May 2016, 12:07:10

Thanks, don't think I will have issues with emmissions as it can run on lpg. does it have any noticeable advantages nitro? Thanks for the link jimbob .

Title: Re: fitting 3 litre cats to a 3.2
Post by: biggriffin on 27 May 2016, 20:11:12

Done mine,  :y