M plate 306 turbo diesel

Could i remove, open the cat up, remove all the honeycomb stuff, weld it back together and still pass a mot?

 

there isnt a cat on a diesel car

 

i thought they invented a cat for modern diesel cars?

 

Correct, i think cats came in for diesels in about 1994. 1992 for petrols.

Because of this the early 306 TD didn't have a cat so if you can get an exhaust from a scrap yard for one of these it'll save alot of trouble and you can still swap back to your original with cat for MOT time. - If yours is an early one and you do fit the exhaust with no cat it may just pass mot as the tester might think "oh, it's an early one with no cat so thats a pass even though emissions are out.."

 

Diesels dont need a cat to pass an mot, they are only given a smoke test! i had a tdi passat which had the cat holowed out just to increase the power slightly, an it did make a small diffrence too performance!