hmm, everytime i let go of the gas, it would make a puttt puttt puttt rattling noise from under the car, what could that be? also, it does that when i turn off the car

the car also seems to shake alot when i give and release gas (motor mounts?)

and when i put it in gear, everytime the car gets from idle - 1500rpm, it seems to be very shaky, it likes to shake at that speed

if i leave it in 2nd, go to around 2000rpm, and let go of the gas, when it drops to around 1500rpm, it would shake....

 

bouncy bouncy

 

Well that sounds like an exhaust leak to me.
Matt
BTW i've had plenty