t0ms wrote:if your car came with an extra cat converter and you were told by ill informed others that you cant remove it as it will make your car "loud" but it resulted in your car barely scraping the legal limit (100kph) would you leave it on?
I've semi done that on my car, I have a removable section of my exhaust for taking out for track days(seems to free it up in the mid and high revs), originally I was just going to leave it(the straight pipe instead of the cat and silencer), but it is too loud to enjoy driving(even though it is still well below the proposed legal limit).