Hey, so I just noticed that my cat is actually welded onto the exhaust manifold and the exhaust. So to change the exhaust I need to buy a new exhaust manifold (big yikes).

Now is there a 4-2-1 exhaust manifold on the market with a built-in cat (that offers fairly good power) to pass the MOT? Then I don't need to change the exhaust manifold every year for MOT...

And I've been looking at DC sports exhaust manifold and the k tuned exhaust manifold. Is it worth to spend the extra money on the k tuned one? Any difference in power when mapped?

Thanks in advance!