I bought a second hand ktec catback system a few months back and it didn’t come with the end pieces for the system that go into the metal sleeve built onto the inside of the rear diffuser. I’ve bought some stainless exhaust piping that I can cut down to the right length but I’m not sure how long I need to make the ends. Can someone who has this system get some measurements for me in terms of length? I know it’s awkward with the diffuser having to come off but it would be a huge help. I’m supposed to be going Scotland driving this weekend but I won’t be comfortable going unless I get this sorted I.e melted or on fire diffuser.