I have a 2000 civic as i go up in speed the car starts to shake and make a loud rattling sound i got new tires and i got them balanced the car still shakes i then removed my exhaust so its not making the rattle any more but its still shaking where else should i look

 

Check the toe angle of the wheels and check for bad engine mounts, for starters

 

Engine mounts, alignment, trailing arm bushings, condition of ball joints, upper control arms etc.

Is your steering wheel off center?

 

Bring it back to the place where you got the tires and ask them to recheck the balancing.
I bought new tires 2 weeks ago and had to have them re-balance the tires a few days later and two of them were not balanced correctly during the initial install.

 

Ok this is what I have done so far i as going to get the car aligned today but i put my exhaust back on and as am double check everything i notice the passenger side cv boot has a tear in it on the part thats connects to the transmission so i put a little RTV on it and I also noticed that the nut that holds my fork for the suspension was missing so i put a new bolt on it then i took the car for a spin around the block and it still shakes as i go straight but shakes less as i turn i didn't get the car aligned because i think the problem is else where I could be wrong. All motor mounts look good no rips or tears.... Am at the point where i just want to get rid of the car but its so nice i don't want to lol

 

First off comas and periods... learn them, know them, use them. Secondly, If your CV boot is ripped then replace the CV axle. Did you bring it back to have the tire balancing re-checked?

 

...You put RTV on a CV boot? The **** why?

Get your wheels balanced. Get your alignment done. Get back to us once you've done that.

 

LOL! I'm so quoting you jbpnoman. Classic. "...You put RTV on a CV boot? The **** why?" OP do as they've suggested above. Start with alignment, balancing, and a new axle(s).