Non type approved catalytic converter

[Fishfire]

My mk2 172 is due MOT in December and I need to replace the KTec sports cat that failed abysmally last year.

Question: Has anyone fitted a non type approved catalytic converter and if so, do they pass emissions ok?

I have the original cat still but the flange that connects to the centre section is wafer thin and unusable. It also annoyingly vibrated on my suffrage at certain revs.

Need a quick cheapish fix that'll get it past an mot


Cheers 😄

 

[Bluebeard]

An aftermarket cat will only last 2/3 years at most. There’s a reason they’re cheap.

Can you not take your OE cat to an exhaust place and get them to chop and weld it with a new flange?

 

[hopgop1]

From all the tales of woe on here about aftermarket cats, I'd be saving myself a load of headache and getting a vband welded onto my original cat.

 

[Fishfire]

An aftermarket cat will only last 2/3 years at most. There’s a reason they’re cheap.

Can you not take your OE cat to an exhaust place and get them to chop and weld it with a new flange?

Potentially, but I'm unsure how good the metalwork is on the rest of the cat.
There's no holes and it passed the last mot it was fitted for but was leaking ballet from the flange

 

[Fishfire]

From all the tales of woe on here about aftermarket cats, I'd be saving myself a load of headache and getting a vband welded onto my original cat.

V band? To the centre section?

 

[hopgop1]

V band? To the centre section?

Can't see that being any different to welding to the manifold?