I've noticed recently that sometimes when I shift into second and sometimes third, I get a loud clank sound coming from underneath the car. I granny shift at about 2.5k rpm and I have no idea what this noise can be because I'm no mechanic. I've had the car for little longer then a month and I hardly drive it hard. Anyone got any ideas?

 

check your mount's out.

 

What exactly are those? I'm not mechanically inclined unfortunately.