variable flow exhausts

[anonymous-user]

is there such thing as one?

[stevieturbo]

The Spruce goose said:

is there such thing as one?

Depends exactly what you mean.

But there are OEM and some aftermarket exhausts that do offer what you could call variable flow.

[Ive]

even OEMs do it only for one reason: Noise limits
Varex,, Capristo, ....