Taylorlashae

I have had a rattling noise in my car for a while now, I recently got the exhaust manifold fixed and it is still rattling as I was told by a mechanic the rattle was from the exhaust manifold. It does not rattle when idling only when in drive and I'm tapping the gas pedal. Any suggestions on what it could be? I've recently heard it could be ball joints or the control arm?

Daehawk

Shouldn't rattle if its tight. Maybe its the valves.