Quote:
|
Originally Posted by 2000civic
I am pretty sure it is skinny so that it can connect to the stock exhuast. I think AJP makes one that is a 3 inch inlet and a 2.5 inch outlet. But it has to be used with a different catback than stock.
|
It gets smaller to also create sufficient back pressure. If it was to large on both sides you would lose the little tq we have.