Due to shut downs and lock downs etc last year, I ended up having to get my upgraded engine tuned WITHOUT a cat. The car sounds great but to loud for my liking.. I prefer the stealth mode and the fun that lets you have without attracting attention, plus the fact that I really should make some effort to keep it eco friendly so I am planning on having a High Flow 200 tube cat fitted. It will quieten it down and burn off some of the pollutants. My concern is what effect it will have on the tune.. I don't really care if it takes away a couple of kwatw but I don't want it to damage my engine..
Has anyone done this and if so was there any issues.. Cheers..