Im looking for a fev tips to clean up my GPU and replacing the termal paste , if you have some tutorials , those are welcome , and what i would like to ask is , would it be good to use the same termal paste i use for my CPU AMD FX8350 , im using the MX4 and it's really doing a nice job on the CPU , would it be good to use it on the GPU , and if i should not use the MX4 paste , wich one should i get for the GPU ? And if i doing all this , will i lose my GPU warranty or is this okey to do , as my GPU is now near 11 moths in use sync i buyed it ?

Thanks.

Replacing the thermal paste won't void the warranty as long as you don't physically damage the card.
 
MX-4 is a good choice for both GPU and CPU thermal compound. There are slightly better pastes out there, but not by that much.
 
https://m.youtube.com/watch?v=N-brze9p_9E
 
That YouTube video should give you a good idea of what to do.

@arestavo Thanks mate for the fast response , yea i know there are a fev better thermal compound on the market , but the best one available in my shops here is the MX4 , but im happy with it on my CPU , but watching some of the test its only a fev degres difference , not that much. So im happy i can use the sam on the gpu ,  and of course i will try to not physically damage the gpu while doing the cleanup and Replacing the thermal paste.

Thanks for the Video , this will help.