I did start a thread on your videos a few weeks ago....
https://www.cliosport.net/threads/road-race-budget-track-car-clio-182-youtube-series.812637/
I’ve being enjoying the updates. I think a lot of people that can relate to your up coming adventures, myself included. My car started in a similar fashion but as many it all got abit out of hand!
Just watched tonight’s video, why buy a new exhaust? There are plenty of second hand ones about. You could then use the spare money to update the engine mounts or something else that will make a huge improvement. I found a Magnex cat back exhaust for £100 from a breaker on eBay. New is circa £400-£450. After all it’s a ‘cheap track car’.......
Keep up the good work!