I wouldn't know what kind of software, I had it done by a company that chip cars, so I didn't do it myself.

This is indeed the original JCW exhaust and it doesn't fit right away... small adjustment, the exhaust of the 1.5 cooper is 60mm in diameter and the diameter of the JCW is 70 mm.. with a small exhaust reducer from 60 to 70 you are ready.. so little work. The pops and bangs come from loading software into the car's computer along with chip tuning

@@SaintTropezOfficial Thanks