Just got a standard cat for a gc8 turbo,for 6.50,probably worth that in scrap but was going to use for my 99 turbo 2000.However although same shape there is no hole at the top for the lambda sensor,instead down below the cat at the curve in the exhaust there is a long lead with a plastic 2 pin plug.Any ideas on how i can fit to my 99,do i need a different plug? a connection purchasable? any help appreciated

 

The 'long lead with a plastic two pin plug' is the exhaust gas temp sensor.

I thought all GC8 cat downpipes should have a hole for the Lambda sensor?
Put a photo up.

 

will do rescue dude,appreciation for your reply

 

havent got round to photo,but looked at cat,genuine classic subaru part,metal guard were lamda sensor hole should be,no hole,just the gas sensor lead attached down below cat,any ideas on how i would get this to function on 99 impreza fire away,puzzled

 

any advice anywhere???!!!!!!

 

Drill a hole&weld a bung in the top of the pipe and put your sensor in. Are you sure it's from a classic? As it should already have a hole at the top.

 

Very early classics had lambda in exhaust collector before up pipe. Could be off early ra with cat on fire sensor.