CBuff

https://bringatrailer.com/listing/caterham-seven-360/

@demoray well bought. I would hope you can make it to njmp next year for the annual meet up.

After last weekends track day I did a deal clean and started wondering about the exhaust. My car was new in June and the exhaust slowly turned blue and now a bronze with some of those colored spots on the collector. Well went down the rabbit hole on polishing. It was fairly straightforward and worked well. before: after Loosened the heat shield to access the cat. used this: Flitz Buff Ball Car Buffer Drill... https://www.amazon.com/dp/B002RCVQM0?ref=ppx_pop_mob_ap_share even with the drill buff ball took some elbow grease but not horrible. Buffed with soft plush micro fiber. I also got some smaller buff balls for in between the primaries.

Also thinking if you got some heavy duty shrink tube. If you wanted to make it removable just er on a bigger size with smaller shrink ratio and non adhesive. https://a.co/d/684EZvT They have it in red.

I think a silicone cap would conform to the rectangular tab. https://www.stockcap.com/silicone-caps.html or you could plastic dip the upper part and have a silicone cap for the vertical end.

Feel free to PM me if you have specific questions and I can look what’s on mine

I’ll be with the car for a few hours. Let me know if there is something specific I can photograph. Mine is 420r sv with heater.

Don’t have any first hand experience on the collector spring. But this has been a useful blog on a recent build https://caterham420detailedbuildblog.co.uk/2020/01/26/collector/ also some others https://caterham420detailedbuildblog.co.uk/useful-links/

I’m doing a thorough cleaning and once over tomorrow after this weekends festivities. So I can grab them tomorrow. After you see them happy to get any specifics if you need