I'm not sure I fully understand what's going on here.
Did you actually BUY four different Z Story back boxes in order to test them and choose which one you want to stick with?
Good and important question (btw it’s 3 zstorys, one Thrush).
Here’s the thing, as I mentioned here or somewhere else, I’ve got sensitive ears to silly levels. I originally bought the Classic but found it too loud for long driving and on the track. I bought the Thrush (horrid name for a car part!) but didn't like the performance drop off. I then asked Sean about his other mufflers and if there was a better option for me.
So he sent me the Track (now Street) to try out, which at the time didn’t have a good enough fit for me to drive down the road with and not ground it out. I know others pointed this out to him too, so he changed the design and sent me the latest version.
You may have spotted on another thread that he offered to send me the JDM a long time ago - I don’t remember the topic of the conversation myself now. But at the time (as you will see from my other thread in lockdown) my car was very unhappy, so I never got around to it until now. Sadly she’s unhappy again with a fuelling issues - will it ever end!!?
Having 4 mufflers in the garage, I was keen to have some back to back testing of my own, but I thought it may help others to see the difference too. Oh and the fact that my kids want to have YouTube channels and I’m learning about it to be able to help them. So I’m experimenting with branding my channel, banners, tags, increasing clicks etc. A lot more to it than I imagined! Still, all good fun - I get to experiment and drive about, my two favourite pass times.
Once I decide which one(s) I want to keep/ pay for, the others will get sold on and the money incl. postage costs get returned to Sean. I’m not sure Sean will want to do this again as, being frank, I’ve been a bit of a pain to him!
I’d gladly do the same with a Spirit Garage or other company if they send me theirs! I’m not afraid of taking my car to bits to test / see the difference different parts make. But I don’t think I have enough subscribers or views to get them to be as patient with me! My 6 subscribers and I aren’t taking YouTube by storm anytime soon.