Ok so I am starting to hear a high drill noise coming from my turbo so before i blow it up i went and got a KO3s from a friend of mine is it difficult to swap these out and replace it or is it just a plug and play, will i have to tune it or flash the cpu? I also have to install a new cat is there a DIY on how to install a new KO3s or something to help me out? Should i get someone to do this for me or is it soooo easy that i should just do it myself?
Thanks
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