A little exhaust help

Aug 20, 2020
3
0
Hello everyone, I have an issue trying to figure out how to pass my MOT with my current setup. I have a 3” down pipe into a custom 2.75” straight through exhaust.
Can I get a CAT and just put it in the middle or am I going to need something a lot more specific/custom made?
I have no experience in the exhaust area and appreciate any help/advice sent my way. Is there anything like reducers I can get to allow it to fit the 2 different sizes? Do I get standard cat or sports cat? I have all these questions going through my head but no idea :) sorry for bad grammar and spelling I’m abit useless at it. Thanks to anyone who replies in advance.
 
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