would a 350x swingarm fit 0n a 200x and if so would it make it any longer or just heavier??

 

It will not fit without modification...

 

ok so if i wanted a longer swinger am i better off just havin the stock one extended or do they sell aftermarket??

 

LOL yeah they sell an aftermarket one. BUT!!! I seen a really nice one on ebay and it went for 350 they dont make them anymore. If you keep your eyes open you might be able to find an extended stock one for fairly cheap. You would be better off extendin yours if you have the money.