Re: Catalytic Convertor and Aftermarket cans ?
I have put two aftermarket cans on my Thou' and she has never been pointed out as "illegal," so I imagine as long as you're just changing the can you are OK.
But, to be fair, my R6 has a massive Cat under the engine and this is usually replaced by some riders with a straight through system and they have never been failed an MoT
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