High-flow catalytic converter advice

[HampusSoder]

Hello!

Finally going to get the complete exhaust replaced. Firstly it's not in a good shape at all but also would like to get the performance gain.

So a 4-2-1 exhaust manifold is definitely something I want but to pass inspection I also need to get a sports cat that can pass MOT.

So this is a cat I found and would really just want to confirm there's not anything I'm missing or should know, will there be any fitting issues (is there enough space where the exhaust goes for it to fit) and I also guess the cat will not fit to any exhaust system altho will still need to look into what system I'll go for.

https://www.magnumtuning.com/en/detail/performance-catalytic-converter-vehicle-specific-universal-installation/ford/puma

Thanks
/Hampus

 

[HampusSoder]

Alright, likely change of plan.

Hadn't realised before that this package had a sport cat option.
http://www.pumaspeed.co.uk/product-Full-FRP-Puma-Manifold-Race-System-PACKAGE-DEAL_690.jsp&pic=1

But any comment on that is also welcomed, should pass MOT, right?