i have 100,000 on the dak no code but do i change the o2 sensors? i have been told by alot of people i should. true?

 

a little off subject but i forgot to tll you guys my dad went to bristol in the spring for the race with a big crew. his buddy a big dodge guy bought a bunch of raffles for 120$ apiece no one wanted one so he kept em. wellll he won a 2010 viper. some race model or something haven't seen it. well they dropped it off and placed it next to his other viper.
well i guess i get a ride at some point. he's trying to decide witch to sell the other is a 98 srt i think, that he bought new. didn't want to waste another thread.