Anytime brother, as @ZX-10R mentioned, venting cans do not make them more efficient.
I'm not a salesperson for either brand, but the way I hooked up my Elite, it does have the ability to vent, should it need to. The thing is the one way valve I installed as an emergency vent is always dry, so I don't think my can ever vents (which is good). You have to remember your system is in vacuum like 90% of the time, and it's only when you are gunning it in boost is there is no vacuum. It is for these times that secondary line works. I think the two line system is really good and you can use quick connects so you don't have to cut into any lines. See my vid, I didn't cut anything factory for either line.
For the ZL1 if you have a Rotofab for the cold air intake, you can put a quick connect with a T underneath so it all works out great. I solved this with a guy who has a ZL1 and didn't want to cut his lines. Mine is a Z06, so the secondary line is a bit different. The primary lines are the same.
I think I might have to do a test on the Mightymouse, but the problem is the cost of all these things, and my Youtube channel doesn't make very much, so I'm always spending money to do things. I'll think about it, and I don't want a free one from Mightymouse, as it could be seen as a sponsored vid, and I don't want to do that. I love how I can say whatever I think in my vids as no one sponsors them.
If you have any questions just let me know
