Is this my exhaust?

[acemodder]

Hey guys

My ZS 120 has a rattling noise down at the rear of the car by the drivers side when I drive.

It is one of two things I think.

1. Exhaust
2. Brakes on rear drivers side

I think it is the exhaust, but my mate things it could be the calipers? Now can calipers cause a rattling type noise? I would have thought no.

Also if it is the exhaust, would that cause bad fuel economy or lack of power to the car at all?

What roughly would be the cost to repair either issue?

Cheers