Yes it is a vehicle licence.Always woundered what the heck those tubes are!
Is it your form of "vehicle licence" of sort also, or just that you've paid what you have to pay kinda thing?
Well, when I think more thoroughly over it, I suppose two of them would actually lessen it, since it would be one for each cylinder. It would still depend on how much exhaust gasses could travel through the stock muffler, since the restricted airflow is what would determine it. But in theory at least, I suppose it would help somewhat.Yeah my bad.
What I meant was, would having two exhausts lessen the restriction of airflow, thus loss of power.
I’m certainly no expert or mechanic.