yay, go karting! (actually been lapping the neighborhood since the weekend when it isn't raining). Lots of details to address and hard to make a judgment on handling/braking, but damnation that's fun!

https://youtu.be/Iwbd7m7hcLg

Frank, sorry, didn't see your questions:

It's a 2L (all EJ20x's are 2L, all EJ25x's are 2.5L).

Can't really tell loudness versus other videos, too many variables. I'll try to get a SPL test on my phone to test and let you know. I get the feeling this can is going to be pretty f-ing loud without the baffle, even with the cat.